Skip to main content Skip to main navigation Skip to footer
Login
Student Login
Educator Login
Sign Up For Free
Gizmos home page Gizmos home page
Gizmos home page
  • Find Gizmos
    
                                                
    See Full Search Results
    • FREE Gizmos
    • NEW Releases
    • STEM Cases
    • Investigations
    • Browse by Standard
    • Browse by Grade & Topic
    • Browse by Core Curriculum
  • About Gizmos
    • What's a Gizmo?
    • About STEM Cases
    • What are Gizmos Investigations?
    • Take a Tour
    • Supporting All Students
    • How to Get Gizmos
    • Testimonials
    • K-5 Science
  • Research
    • The Impact of Gizmos on Student Achievement
    • The Research Behind Gizmos
  • Support
    • Professional Development Overview
    • Meet the Team
    • Course Catalog
    • Help Center
    • Site Status
  • Resources
    • Popular Gizmos Collections
    • Educator Resource Hub
    • Success Stories
    • Insights
  • Get More Info
    • Sign Up for Free
    • Request Purchasing Info
    • Request a Demo
    • Request a Pilot
    • Contact Support
  • Login
    • Student Login
    • Educator Login
  • Sign Up For Free
  • Home
  • Find Gizmos
  • Browse by Standard (USA)
  • Arkansas Standards
  • Mathematics: Grade 3

Arkansas - Mathematics: Grade 3

Academic Standards | Adopted: 2023

This correlation lists the recommended Gizmos for this state's curriculum standards. Click any Gizmo title below for more information.

3.NPV: : Number & Place Value


1.1: : Place Value

1.1.1: : Students understand the base ten place value system.

3.NPV.1: : Round four-digit whole numbers to the nearest 10 or 100, using place value understanding.

Screenshot of Rounding Whole Numbers (Number Line)

Rounding Whole Numbers (Number Line)

Place points on a number line. Round these values to the nearest ten or hundred. Visualize rounding by showing the number line as a hill or series of hills. These hills cause the points to roll to the nearest valley (nearest multiple of ten or one hundred). 5 Minute Preview


Lesson Info
Launch Gizmo

3.NPV.3: : Read and write whole numbers up to 10,000, using base ten numerals, word form, and a variety of expanded forms.

Screenshot of Cannonball Clowns (Number Line Estimation)

Cannonball Clowns (Number Line Estimation)

Launch clowns from a circus cannon and try to hit the target. Drag digit cards on the control panel to set the launch distance and choose an appropriate unit of distance. After practicing your clown-launching skills on a number line, move on to the Big Top, Football Field, School Buses, the Golden Gate Bridge, and more! 5 Minute Preview


Lesson Info
Launch Gizmo
Screenshot of Modeling Whole Numbers and Decimals (Base-10 Blocks)

Modeling Whole Numbers and Decimals (Base-10 Blocks)

Model numbers with base-10 blocks. Drag flats, rods, and individual cubes onto a mat to model a number. Blocks can be exchanged from one area of the mat to the other. Four sets of blocks are available to model a variety of whole numbers and decimals. 5 Minute Preview


Lesson Info
Launch Gizmo
Screenshot of Whole Numbers with Base-10 Blocks

Whole Numbers with Base-10 Blocks

Use base-10 blocks to model, add, and subtract whole numbers. Learn about place value using flats (hundreds), rods (tens), and cubes (ones). Group or ungroup blocks as needed to add or subtract. This regrouping is often called "carrying" when adding, and "borrowing" when subtracting. 5 Minute Preview


Lesson Info
Launch Gizmo

1.2: : Comparison

1.2.1: : Students use place value understanding to compare numbers.

3.NPV.5: : Compare two fractions with the same numerator or denominator by reasoning about their size based on the same whole; use symbols (<, =, >) and justify the conclusion using visual fraction models, concrete objects, or words.

Screenshot of Equivalent Fractions (Fraction Tiles)

Equivalent Fractions (Fraction Tiles)

Explore fractions using the Fractionator, the machine that makes fraction tiles. Compare fractions and find equivalent fractions by arranging the tiles on two horizontal rows. Explore simplifying fractions. Add fractions and express sums as improper fractions or mixed numbers. 5 Minute Preview


Lesson Info
Launch Gizmo
Screenshot of Fraction Artist 1 (Area Models of Fractions)

Fraction Artist 1 (Area Models of Fractions)

Develop understanding of fractions by making modern paintings. Find different ways to divide a canvas into equal-sized sections. Make paintings to represent simple fractions and to find fractions that are equivalent to one-half. 5 Minute Preview


Lesson Info
Launch Gizmo
Screenshot of Fraction Artist 2 (Area Models of Fractions)

Fraction Artist 2 (Area Models of Fractions)

Extend understanding of fractions by making modern paintings in the style of Piet Mondrian. Create and analyze paintings with different-sized sections. Compare the sizes of unit fractions. Find creative ways to color one-half of a painting. This can be a nice introduction to adding fractions with unlike denominators. 5 Minute Preview


Lesson Info
Launch Gizmo
Screenshot of Fraction Garden (Comparing Fractions)

Fraction Garden (Comparing Fractions)

Plant flowers in two gardens to help develop fraction sense. The two gardens act as number lines, from 0 to 1. Use the flowers in the gardens to compare fractions and to explore equivalent fractions. Chalk marks can be drawn to divide the garden into equal sections. 5 Minute Preview


Lesson Info
Launch Gizmo
Screenshot of Modeling Fractions (Area Models)

Modeling Fractions (Area Models)

Model and compare fractions using area models. Set the denominators with the arrow buttons, and then set the numerators with the arrow buttons or by clicking in the models. Compare fractions visually, on a number line, or numerically using the least common denominator. 5 Minute Preview


Lesson Info
Launch Gizmo

1.3: : Fraction Foundations

1.3.1: : Students build a conceptual understanding of fractions.

3.NPV.6: : Identify fractions as parts of a whole and parts of a collection or set.

Screenshot of Equivalent Fractions (Fraction Tiles)

Equivalent Fractions (Fraction Tiles)

Explore fractions using the Fractionator, the machine that makes fraction tiles. Compare fractions and find equivalent fractions by arranging the tiles on two horizontal rows. Explore simplifying fractions. Add fractions and express sums as improper fractions or mixed numbers. 5 Minute Preview


Lesson Info
Launch Gizmo
Screenshot of Fraction Artist 1 (Area Models of Fractions)

Fraction Artist 1 (Area Models of Fractions)

Develop understanding of fractions by making modern paintings. Find different ways to divide a canvas into equal-sized sections. Make paintings to represent simple fractions and to find fractions that are equivalent to one-half. 5 Minute Preview


Lesson Info
Launch Gizmo
Screenshot of Fraction Artist 2 (Area Models of Fractions)

Fraction Artist 2 (Area Models of Fractions)

Extend understanding of fractions by making modern paintings in the style of Piet Mondrian. Create and analyze paintings with different-sized sections. Compare the sizes of unit fractions. Find creative ways to color one-half of a painting. This can be a nice introduction to adding fractions with unlike denominators. 5 Minute Preview


Lesson Info
Launch Gizmo
Screenshot of Modeling Fractions (Area Models)

Modeling Fractions (Area Models)

Model and compare fractions using area models. Set the denominators with the arrow buttons, and then set the numerators with the arrow buttons or by clicking in the models. Compare fractions visually, on a number line, or numerically using the least common denominator. 5 Minute Preview


Lesson Info
Launch Gizmo
Screenshot of Toy Factory (Set Models of Fractions)

Toy Factory (Set Models of Fractions)

Create a set of stuffed animals: monkeys, giraffes, and rabbits. Toys can be painted red, green, or blue. Describe the makeup of the set (animals or colors) with fractions. Arrange the toys into groups to simplify the fractions. 5 Minute Preview


Lesson Info
Launch Gizmo

3.NPV.7: : Partition squares, regular hexagons, and equilateral triangles into parts with equal shares, explaining the shares of each part as a unit fraction of the whole.

Screenshot of Fraction Artist 1 (Area Models of Fractions)

Fraction Artist 1 (Area Models of Fractions)

Develop understanding of fractions by making modern paintings. Find different ways to divide a canvas into equal-sized sections. Make paintings to represent simple fractions and to find fractions that are equivalent to one-half. 5 Minute Preview


Lesson Info
Launch Gizmo
Screenshot of Fraction Artist 2 (Area Models of Fractions)

Fraction Artist 2 (Area Models of Fractions)

Extend understanding of fractions by making modern paintings in the style of Piet Mondrian. Create and analyze paintings with different-sized sections. Compare the sizes of unit fractions. Find creative ways to color one-half of a painting. This can be a nice introduction to adding fractions with unlike denominators. 5 Minute Preview


Lesson Info
Launch Gizmo

3.NPV.8: : Identify and represent a unit fraction as a number on the number line.

Screenshot of Fraction Garden (Comparing Fractions)

Fraction Garden (Comparing Fractions)

Plant flowers in two gardens to help develop fraction sense. The two gardens act as number lines, from 0 to 1. Use the flowers in the gardens to compare fractions and to explore equivalent fractions. Chalk marks can be drawn to divide the garden into equal sections. 5 Minute Preview


Lesson Info
Launch Gizmo
Screenshot of Modeling Fractions (Area Models)

Modeling Fractions (Area Models)

Model and compare fractions using area models. Set the denominators with the arrow buttons, and then set the numerators with the arrow buttons or by clicking in the models. Compare fractions visually, on a number line, or numerically using the least common denominator. 5 Minute Preview


Lesson Info
Launch Gizmo

3.NPV.9: : Identify and represent a non-unit fraction as a number on the number line, including fractions greater than one.

Screenshot of Fraction Garden (Comparing Fractions)

Fraction Garden (Comparing Fractions)

Plant flowers in two gardens to help develop fraction sense. The two gardens act as number lines, from 0 to 1. Use the flowers in the gardens to compare fractions and to explore equivalent fractions. Chalk marks can be drawn to divide the garden into equal sections. 5 Minute Preview


Lesson Info
Launch Gizmo
Screenshot of Modeling Fractions (Area Models)

Modeling Fractions (Area Models)

Model and compare fractions using area models. Set the denominators with the arrow buttons, and then set the numerators with the arrow buttons or by clicking in the models. Compare fractions visually, on a number line, or numerically using the least common denominator. 5 Minute Preview


Lesson Info
Launch Gizmo

3.NPV.10: : Decompose and compose a non-unit fraction a/b as the quantity formed by the sum of unit fractions.

Screenshot of Equivalent Fractions (Fraction Tiles)

Equivalent Fractions (Fraction Tiles)

Explore fractions using the Fractionator, the machine that makes fraction tiles. Compare fractions and find equivalent fractions by arranging the tiles on two horizontal rows. Explore simplifying fractions. Add fractions and express sums as improper fractions or mixed numbers. 5 Minute Preview


Lesson Info
Launch Gizmo
Screenshot of Fraction Artist 1 (Area Models of Fractions)

Fraction Artist 1 (Area Models of Fractions)

Develop understanding of fractions by making modern paintings. Find different ways to divide a canvas into equal-sized sections. Make paintings to represent simple fractions and to find fractions that are equivalent to one-half. 5 Minute Preview


Lesson Info
Launch Gizmo
Screenshot of Fraction Artist 2 (Area Models of Fractions)

Fraction Artist 2 (Area Models of Fractions)

Extend understanding of fractions by making modern paintings in the style of Piet Mondrian. Create and analyze paintings with different-sized sections. Compare the sizes of unit fractions. Find creative ways to color one-half of a painting. This can be a nice introduction to adding fractions with unlike denominators. 5 Minute Preview


Lesson Info
Launch Gizmo
Screenshot of Fraction Garden (Comparing Fractions)

Fraction Garden (Comparing Fractions)

Plant flowers in two gardens to help develop fraction sense. The two gardens act as number lines, from 0 to 1. Use the flowers in the gardens to compare fractions and to explore equivalent fractions. Chalk marks can be drawn to divide the garden into equal sections. 5 Minute Preview


Lesson Info
Launch Gizmo
Screenshot of Modeling Fractions (Area Models)

Modeling Fractions (Area Models)

Model and compare fractions using area models. Set the denominators with the arrow buttons, and then set the numerators with the arrow buttons or by clicking in the models. Compare fractions visually, on a number line, or numerically using the least common denominator. 5 Minute Preview


Lesson Info
Launch Gizmo

1.4: : Equivalent Fractions

1.4.1: : Students develop and apply equivalent fraction understanding.

3.NPV.11: : Use number lines and visual models to recognize and generate equivalent fractions, explaining how they are equivalent in real-world and mathematical situations.

Screenshot of Equivalent Fractions (Fraction Tiles)

Equivalent Fractions (Fraction Tiles)

Explore fractions using the Fractionator, the machine that makes fraction tiles. Compare fractions and find equivalent fractions by arranging the tiles on two horizontal rows. Explore simplifying fractions. Add fractions and express sums as improper fractions or mixed numbers. 5 Minute Preview


Lesson Info
Launch Gizmo
Screenshot of Fraction Artist 1 (Area Models of Fractions)

Fraction Artist 1 (Area Models of Fractions)

Develop understanding of fractions by making modern paintings. Find different ways to divide a canvas into equal-sized sections. Make paintings to represent simple fractions and to find fractions that are equivalent to one-half. 5 Minute Preview


Lesson Info
Launch Gizmo
Screenshot of Fraction Artist 2 (Area Models of Fractions)

Fraction Artist 2 (Area Models of Fractions)

Extend understanding of fractions by making modern paintings in the style of Piet Mondrian. Create and analyze paintings with different-sized sections. Compare the sizes of unit fractions. Find creative ways to color one-half of a painting. This can be a nice introduction to adding fractions with unlike denominators. 5 Minute Preview


Lesson Info
Launch Gizmo
Screenshot of Fraction Garden (Comparing Fractions)

Fraction Garden (Comparing Fractions)

Plant flowers in two gardens to help develop fraction sense. The two gardens act as number lines, from 0 to 1. Use the flowers in the gardens to compare fractions and to explore equivalent fractions. Chalk marks can be drawn to divide the garden into equal sections. 5 Minute Preview


Lesson Info
Launch Gizmo
Screenshot of Modeling Fractions (Area Models)

Modeling Fractions (Area Models)

Model and compare fractions using area models. Set the denominators with the arrow buttons, and then set the numerators with the arrow buttons or by clicking in the models. Compare fractions visually, on a number line, or numerically using the least common denominator. 5 Minute Preview


Lesson Info
Launch Gizmo
Screenshot of Toy Factory (Set Models of Fractions)

Toy Factory (Set Models of Fractions)

Create a set of stuffed animals: monkeys, giraffes, and rabbits. Toys can be painted red, green, or blue. Describe the makeup of the set (animals or colors) with fractions. Arrange the toys into groups to simplify the fractions. 5 Minute Preview


Lesson Info
Launch Gizmo

3.CAR: : Computation & Algebraic Reasoning


2.1: : Operations & Properties

2.1.1: : Students perform operations using place value understanding and properties of operations.

3.CAR.1: : Use computational fluency to add and subtract three-digit whole numbers, using strategies and algorithms based on place value, properties of operations, and/or the relationship between addition and subtraction.

Screenshot of Adding Whole Numbers and Decimals (Base-10 Blocks)

Adding Whole Numbers and Decimals (Base-10 Blocks)

Use base-10 blocks to model two numbers. Then combine the blocks to model the sum. Blocks of equal value can be exchanged from one area of the mat to the other to help understand carrying when adding. Four sets of blocks are available to model different place values. 5 Minute Preview


Lesson Info
Launch Gizmo
Screenshot of Cargo Captain (Multi-digit Subtraction)

Cargo Captain (Multi-digit Subtraction)

You are the captain of an interplanetary cargo ship, delivering important supplies to the outer planets. The cargo can be stored in barrels, crates, and holds. (There are 10 barrels in a crate, and 10 crates in a hold.) Model multi-digit subtraction by unloading cargo on each planet. 5 Minute Preview


Lesson Info
Launch Gizmo
Screenshot of Subtracting Whole Numbers and Decimals (Base-10 Blocks)

Subtracting Whole Numbers and Decimals (Base-10 Blocks)

Use base-10 blocks to model a starting number. Then subtract blocks from this number by dragging them into a subtraction bin. Blocks of equal value can be exchanged from one section of the mat to the other to help understand regrouping and borrowing. Four sets of blocks are available to model different place values. 5 Minute Preview


Lesson Info
Launch Gizmo
Screenshot of Target Sum Card Game (Multi-digit Addition)

Target Sum Card Game (Multi-digit Addition)

Play an addition card game! The goal is to create a sum that is as close as possible to the target sum. Students will deepen their understanding of place value as they get better at playing the game. Many game options allow students to vary the game for more practice. The game can be played with one or two players. 5 Minute Preview


Lesson Info
Launch Gizmo
Screenshot of Whole Numbers with Base-10 Blocks

Whole Numbers with Base-10 Blocks

Use base-10 blocks to model, add, and subtract whole numbers. Learn about place value using flats (hundreds), rods (tens), and cubes (ones). Group or ungroup blocks as needed to add or subtract. This regrouping is often called "carrying" when adding, and "borrowing" when subtracting. 5 Minute Preview


Lesson Info
Launch Gizmo

3.CAR.2: : Use basic fact fluency to multiply and divide whole numbers with mastery by the end of third grade.

Screenshot of Chocomatic (Multiplication, Arrays, and Area)

Chocomatic (Multiplication, Arrays, and Area)

Use the Chocomatic to design candy bars made out of chocolate squares. Use multiplication to find the number of squares in each chocolate bar. Build collections of chocolate bars that all have the same number of squares. Solve multiplication problems by joining two smaller chocolate bars into a large bar. 5 Minute Preview


Lesson Info
Launch Gizmo
Screenshot of Critter Count (Modeling Multiplication)

Critter Count (Modeling Multiplication)

Use groups of critters on leaves to model multiplication as repeated addition. Change the expression to change the number of groups or the number of critters per group. Display the critters either on leaves or as a rectangular array. 5 Minute Preview


Lesson Info
Launch Gizmo
Screenshot of Factor Trees (Factoring Numbers)

Factor Trees (Factoring Numbers)

The Factor Trees Gizmo has two modes. In Factor mode, you can create factor trees to factor composite numbers into primes. In Build mode, you can build numbers by multiplying primes together. Can you build all composite numbers up to 50? Any whole composite number up to 999 can be factored or built with the Gizmo. 5 Minute Preview


Lesson Info
Launch Gizmo
Screenshot of No Alien Left Behind (Division with Remainders)

No Alien Left Behind (Division with Remainders)

The alien school children from the planet Zigmo travel to distant planets on a field trip. The goal is to select a bus size so that all buses are full and no aliens are left behind. This is a nice illustration of division with remainders. 5 Minute Preview


Lesson Info
Launch Gizmo

3.CAR.3: : Apply properties of operations as strategies to multiply and divide.

Screenshot of Chocomatic (Multiplication, Arrays, and Area)

Chocomatic (Multiplication, Arrays, and Area)

Use the Chocomatic to design candy bars made out of chocolate squares. Use multiplication to find the number of squares in each chocolate bar. Build collections of chocolate bars that all have the same number of squares. Solve multiplication problems by joining two smaller chocolate bars into a large bar. 5 Minute Preview


Lesson Info
Launch Gizmo
Screenshot of Critter Count (Modeling Multiplication)

Critter Count (Modeling Multiplication)

Use groups of critters on leaves to model multiplication as repeated addition. Change the expression to change the number of groups or the number of critters per group. Display the critters either on leaves or as a rectangular array. 5 Minute Preview


Lesson Info
Launch Gizmo

3.CAR.5: : Identify arithmetic patterns including, but not limited to, patterns in an addition or multiplication table, explaining use of properties of operations appropriate to the pattern.

Screenshot of Function Machines 1 (Functions and Tables)

Function Machines 1 (Functions and Tables)

Drop a number into a function machine, and see what number comes out! You can use one of the six pre-set function machines, or program your own function rule into one of the blank machines. Stack up to three function machines together. Input and output can be recorded in a table and on a graph. 5 Minute Preview


Lesson Info
Launch Gizmo
Screenshot of Pattern Flip (Patterns)

Pattern Flip (Patterns)

In the Pattern Flip carnival game, you are shown a pattern of cards. The first cards are face-up so you can see the pattern, and the rest are face-down. Can you guess which animals are on the face-down cards? Use one of the preset patterns, or make your own custom pattern. Good luck! 5 Minute Preview


Lesson Info
Launch Gizmo

2.2: : Problem Solving

2.2.1: : Students solve real-world problems.

3.CAR.6: : Solve real-world problems using multiplication and division within 100 involving equal groups, arrays, partitive and measurement division.

Screenshot of Chocomatic (Multiplication, Arrays, and Area)

Chocomatic (Multiplication, Arrays, and Area)

Use the Chocomatic to design candy bars made out of chocolate squares. Use multiplication to find the number of squares in each chocolate bar. Build collections of chocolate bars that all have the same number of squares. Solve multiplication problems by joining two smaller chocolate bars into a large bar. 5 Minute Preview


Lesson Info
Launch Gizmo
Screenshot of Critter Count (Modeling Multiplication)

Critter Count (Modeling Multiplication)

Use groups of critters on leaves to model multiplication as repeated addition. Change the expression to change the number of groups or the number of critters per group. Display the critters either on leaves or as a rectangular array. 5 Minute Preview


Lesson Info
Launch Gizmo
Screenshot of No Alien Left Behind (Division with Remainders)

No Alien Left Behind (Division with Remainders)

The alien school children from the planet Zigmo travel to distant planets on a field trip. The goal is to select a bus size so that all buses are full and no aliens are left behind. This is a nice illustration of division with remainders. 5 Minute Preview


Lesson Info
Launch Gizmo

3.CAR.7: : Solve two-step real-world situations using addition, subtraction, multiplication, and division, representing these problems using equations with a symbol standing for an unknown quantity.

Screenshot of Cargo Captain (Multi-digit Subtraction)

Cargo Captain (Multi-digit Subtraction)

You are the captain of an interplanetary cargo ship, delivering important supplies to the outer planets. The cargo can be stored in barrels, crates, and holds. (There are 10 barrels in a crate, and 10 crates in a hold.) Model multi-digit subtraction by unloading cargo on each planet. 5 Minute Preview


Lesson Info
Launch Gizmo
Screenshot of Chocomatic (Multiplication, Arrays, and Area)

Chocomatic (Multiplication, Arrays, and Area)

Use the Chocomatic to design candy bars made out of chocolate squares. Use multiplication to find the number of squares in each chocolate bar. Build collections of chocolate bars that all have the same number of squares. Solve multiplication problems by joining two smaller chocolate bars into a large bar. 5 Minute Preview


Lesson Info
Launch Gizmo
Screenshot of Critter Count (Modeling Multiplication)

Critter Count (Modeling Multiplication)

Use groups of critters on leaves to model multiplication as repeated addition. Change the expression to change the number of groups or the number of critters per group. Display the critters either on leaves or as a rectangular array. 5 Minute Preview


Lesson Info
Launch Gizmo
Screenshot of No Alien Left Behind (Division with Remainders)

No Alien Left Behind (Division with Remainders)

The alien school children from the planet Zigmo travel to distant planets on a field trip. The goal is to select a bus size so that all buses are full and no aliens are left behind. This is a nice illustration of division with remainders. 5 Minute Preview


Lesson Info
Launch Gizmo
Screenshot of Number Line Frog Hop (Addition and Subtraction)

Number Line Frog Hop (Addition and Subtraction)

Live a frog's life as you hop along a number line in search of flies. Learn how addition and subtraction can be represented as movement along a number line. Fred the frog may even help you get better at adding and subtracting two-digit numbers in your head by decomposing them into tens and ones. 5 Minute Preview


Lesson Info
Launch Gizmo

2.3: : Algebraic Concepts

2.3.1: : Students develop and apply an understanding of foundational algebraic concepts.

3.CAR.8: : Determine the unknown whole number in a multiplication or division equation relating three whole numbers.

Screenshot of Factor Trees (Factoring Numbers)

Factor Trees (Factoring Numbers)

The Factor Trees Gizmo has two modes. In Factor mode, you can create factor trees to factor composite numbers into primes. In Build mode, you can build numbers by multiplying primes together. Can you build all composite numbers up to 50? Any whole composite number up to 999 can be factored or built with the Gizmo. 5 Minute Preview


Lesson Info
Launch Gizmo

3.CAR.9: : Understand division as an unknown-factor problem.

Screenshot of Factor Trees (Factoring Numbers)

Factor Trees (Factoring Numbers)

The Factor Trees Gizmo has two modes. In Factor mode, you can create factor trees to factor composite numbers into primes. In Build mode, you can build numbers by multiplying primes together. Can you build all composite numbers up to 50? Any whole composite number up to 999 can be factored or built with the Gizmo. 5 Minute Preview


Lesson Info
Launch Gizmo

3.GM: : Geometry & Measurement


3.1: : Shapes

3.1.1: : Students analyze attributes of shapes to develop generalizations about their properties.

3.GM.1: : Understand that quadrilaterals in different categories may share attributes; those attributes (e.g., four equivalent sides) can define a larger category (e.g., quadrilaterals) or subcategory (e.g., rhombus and square).

Screenshot of Classifying Quadrilaterals

Classifying Quadrilaterals

Apply constraints to a quadrilateral, and then reshape and resize it. Classify the figure by its constraints. Explore the differences between the different kinds of quadrilaterals. 5 Minute Preview


Lesson Info
Launch Gizmo

3.GM.2: : Identify perpendicular and parallel lines, as well as right angles in two-dimensional shapes and real-world surroundings or objects.

Screenshot of Classifying Quadrilaterals

Classifying Quadrilaterals

Apply constraints to a quadrilateral, and then reshape and resize it. Classify the figure by its constraints. Explore the differences between the different kinds of quadrilaterals. 5 Minute Preview


Lesson Info
Launch Gizmo
Screenshot of Classifying Triangles

Classifying Triangles

Place constraints on a triangle and determine what classifications must apply to the triangle. 5 Minute Preview


Lesson Info
Launch Gizmo

3.GM.3: : Recognize rhombuses, rectangles, and squares as examples of quadrilaterals, identifying and/or drawing examples of quadrilaterals that do not belong to any of these subcategories.

Screenshot of Classifying Quadrilaterals

Classifying Quadrilaterals

Apply constraints to a quadrilateral, and then reshape and resize it. Classify the figure by its constraints. Explore the differences between the different kinds of quadrilaterals. 5 Minute Preview


Lesson Info
Launch Gizmo

3.3: : Area & Volume

3.3.1: : Students calculate the area of rectangles and liquid volume.

3.GM.5: : Describe area as the number of unit squares that cover a plane figure without gaps and overlaps.

Screenshot of Balancing Blocks (Volume)

Balancing Blocks (Volume)

This Gizmo provides you with two challenges. First, use blocks to build a figure with a given volume. Then, try to balance the blocks on a platform that sits on the tip of a cone. The dimensions of the platform can be adjusted, and blocks can be added or deleted by clicking on the model. 5 Minute Preview


Lesson Info
Launch Gizmo
Screenshot of Chocomatic (Multiplication, Arrays, and Area)

Chocomatic (Multiplication, Arrays, and Area)

Use the Chocomatic to design candy bars made out of chocolate squares. Use multiplication to find the number of squares in each chocolate bar. Build collections of chocolate bars that all have the same number of squares. Solve multiplication problems by joining two smaller chocolate bars into a large bar. 5 Minute Preview


Lesson Info
Launch Gizmo
Screenshot of Fido's Flower Bed (Perimeter and Area)

Fido's Flower Bed (Perimeter and Area)

Construct models of gardens on a grid using squares of sod. Fence the gardens to find and compare perimeters. Work with pre-built gardens made of 36 squares each to compare perimeters of shapes with equal areas. 5 Minute Preview


Lesson Info
Launch Gizmo

3.GM.6: : Find the area of a rectangle with whole number side lengths by modeling with unit squares and multiplying the side lengths to show the results are the same.

Screenshot of Balancing Blocks (Volume)

Balancing Blocks (Volume)

This Gizmo provides you with two challenges. First, use blocks to build a figure with a given volume. Then, try to balance the blocks on a platform that sits on the tip of a cone. The dimensions of the platform can be adjusted, and blocks can be added or deleted by clicking on the model. 5 Minute Preview


Lesson Info
Launch Gizmo
Screenshot of Chocomatic (Multiplication, Arrays, and Area)

Chocomatic (Multiplication, Arrays, and Area)

Use the Chocomatic to design candy bars made out of chocolate squares. Use multiplication to find the number of squares in each chocolate bar. Build collections of chocolate bars that all have the same number of squares. Solve multiplication problems by joining two smaller chocolate bars into a large bar. 5 Minute Preview


Lesson Info
Launch Gizmo
Screenshot of Fido's Flower Bed (Perimeter and Area)

Fido's Flower Bed (Perimeter and Area)

Construct models of gardens on a grid using squares of sod. Fence the gardens to find and compare perimeters. Work with pre-built gardens made of 36 squares each to compare perimeters of shapes with equal areas. 5 Minute Preview


Lesson Info
Launch Gizmo

3.GM.7: : Multiply side lengths to find areas of rectangles with whole number side lengths in the context of solving real-world and mathematical problems.

Screenshot of Chocomatic (Multiplication, Arrays, and Area)

Chocomatic (Multiplication, Arrays, and Area)

Use the Chocomatic to design candy bars made out of chocolate squares. Use multiplication to find the number of squares in each chocolate bar. Build collections of chocolate bars that all have the same number of squares. Solve multiplication problems by joining two smaller chocolate bars into a large bar. 5 Minute Preview


Lesson Info
Launch Gizmo
Screenshot of Fido's Flower Bed (Perimeter and Area)

Fido's Flower Bed (Perimeter and Area)

Construct models of gardens on a grid using squares of sod. Fence the gardens to find and compare perimeters. Work with pre-built gardens made of 36 squares each to compare perimeters of shapes with equal areas. 5 Minute Preview


Lesson Info
Launch Gizmo

3.GM.8: : Measure and estimate liquid volumes and masses of objects using standard units.

Screenshot of Measuring Volume

Measuring Volume

Measure the volume of liquids and solids using beakers, graduated cylinders, overflow cups, and rulers. Water can be poured from one container to another and objects can be added to containers. A pipette can be used to transfer small amounts of water, and a magnifier can be used to observe the meniscus in a graduated cylinder. Test your volume-measurement skills in the "Practice" mode of the Gizmo. 5 Minute Preview


Lesson Info
Launch Gizmo
Screenshot of Weight and Mass

Weight and Mass

Use a balance to measure mass and a spring scale to measure the weight of objects. Compare the masses and weights of objects on Earth, Mars, Jupiter, and the Moon. 5 Minute Preview


Lesson Info
Launch Gizmo

3.GM.9: : Solve one-step real-world problems involving liquid volumes and masses of objects in the same units, using all four operations.

Screenshot of Measuring Volume

Measuring Volume

Measure the volume of liquids and solids using beakers, graduated cylinders, overflow cups, and rulers. Water can be poured from one container to another and objects can be added to containers. A pipette can be used to transfer small amounts of water, and a magnifier can be used to observe the meniscus in a graduated cylinder. Test your volume-measurement skills in the "Practice" mode of the Gizmo. 5 Minute Preview


Lesson Info
Launch Gizmo
Screenshot of Weight and Mass

Weight and Mass

Use a balance to measure mass and a spring scale to measure the weight of objects. Compare the masses and weights of objects on Earth, Mars, Jupiter, and the Moon. 5 Minute Preview


Lesson Info
Launch Gizmo

3.4: : Time

3.4.1: : Students tell time and solve problems about elapsed time.

3.GM.10: : Tell and write time to the nearest minute, using analog clocks.

Screenshot of Elapsed Time

Elapsed Time

Calculate the difference between the times given by two analog clocks. Rotate the hands of the clocks to change the time and see how the calculation changes. 5 Minute Preview


Lesson Info
Launch Gizmo

3.GM.11: : Solve word problems involving addition and subtraction of time intervals in minutes.

Screenshot of Elapsed Time

Elapsed Time

Calculate the difference between the times given by two analog clocks. Rotate the hands of the clocks to change the time and see how the calculation changes. 5 Minute Preview


Lesson Info
Launch Gizmo

3.DA: : Data Analysis


4.1: : Charts, Graphs, & Tables

4.1.1: : Students organize and analyze data.

3.DA.1: : Represent a data set with multiple categories, using a scaled picture graph, scaled bar graph, and a line plot.

Screenshot of Graphing Skills

Graphing Skills

Create a graph (bar graph, line graph, pie chart, or scatter plot) based on a given data set. Title the graph, label the axes, and choose a scale. Adjust the graph to fit the data, and then check your accuracy. The Gizmo can also be used to create a data table based on a given graph. 5 Minute Preview


Lesson Info
Launch Gizmo
Screenshot of Mascot Election (Pictographs and Bar Graphs)

Mascot Election (Pictographs and Bar Graphs)

A brand new school is opening and it is time to elect the school mascot! Students can choose the Eagle, Lion, Bear, or Wolf. Voting results can be displayed in a table, tally chart, pictograph, bar graph, circle graph, or dot plot. You can change student votes by selecting a group of students and clicking a mascot. 5 Minute Preview


Lesson Info
Launch Gizmo
Screenshot of Reaction Time 1 (Graphs and Statistics)

Reaction Time 1 (Graphs and Statistics)

Test your reaction time by catching a falling ruler or clicking a target. Create a data set of experiment results, and calculate the range, mode, median, and mean of your data. Data can be displayed on a list, table, bar graph or dot plot. The Reaction Time 1 Student Exploration focuses on range, mode, and median. 5 Minute Preview


Lesson Info
Launch Gizmo

3.DA.2: : Solve one and two-step problems, using categorical data represented with a scaled picture graph, scaled bar graph, and a line plot.

Screenshot of Graphing Skills

Graphing Skills

Create a graph (bar graph, line graph, pie chart, or scatter plot) based on a given data set. Title the graph, label the axes, and choose a scale. Adjust the graph to fit the data, and then check your accuracy. The Gizmo can also be used to create a data table based on a given graph. 5 Minute Preview


Lesson Info
Launch Gizmo

Correlation last revised: 10/8/2025

About STEM Cases

Students assume the role of a scientist trying to solve a real world problem. They use scientific practices to collect and analyze data, and form and test a hypothesis as they solve the problems.

Realtime reporting icon

Each STEM Case uses realtime reporting to show live student results.
Introduction to the Heatmap

Time icon

STEM Cases take between 30-90 minutes for students to complete, depending on the case.

Save icon

Student progress is automatically saved so that STEM Cases can be completed over multiple sessions.

Grades icon

Multiple grade-appropriate versions, or levels, exist for each STEM Case.

Handbook icon

Each STEM Case level has an associated Handbook. These are interactive guides that focus on the science concepts underlying the case.

STEM Case Help & Resources Sign Up for Free

How Free Gizmos Work

Gizmos icon

Start teaching with 20-40 Free Gizmos. See the full list.

Lesson materials list icon

Access lesson materials for Free Gizmos including teacher guides, lesson plans, and more.

Time icon

All other Gizmos are limited to a 5 Minute Preview and can only be used for 5 minutes a day.

Refresh icon

Free Gizmos change each semester. The new collection will be available January 1 and July 1.

Sign Up for Free

Want More?

Check out these quick links.

  • Sign up for a FREE Trial!
  • Take a Tour
  • Get Help

Find Your Solution

Start playing, exploring and learning today with a free account. Or contact us for a quote or demo.

Sign Up For Free Get a Quote
Find Your Solution
Gizmos logo Brought to you by ExploreLearning

© 2025 ExploreLearning. All rights reserved. Gizmo and Gizmos are registered trademarks of ExploreLearning. STEM Cases, Handbooks and the associated Realtime Reporting System are protected by US Patent No. 10,410,534

Other Products

Reflex icon Frax icon Science4Us icon
Find Gizmos
  • FREE Gizmos
  • NEW Releases
  • STEM Cases
  • Browse by Standard
  • Browse by Grade & Topic
  • Browse by Core Curriculum
About Gizmos
  • What's a Gizmo?
  • About STEM Cases
  • What are Gizmos Investigations?
  • Take a Tour
  • Supporting All Students
  • How to Get Gizmos
  • Testimonials
  • K-5 Science
Research
  • The Impact of Gizmos on Student Achievement
  • The Research Behind Gizmos
Support
  • Professional Development Overview
  • Meet the Team
  • Course Catalog
  • Help Center
  • Site Status
Resources
  • Popular Gizmos Collections
  • Educator Resource Hub
  • Success Stories
  • Insights
Get More Info
  • Sign Up for Free
  • Request Purchasing Info
  • Request a Demo
  • Request a Pilot
  • Contact Support

Get Connected

  • Support Form
  • Toll-Free 866-882-4141
  • Local +1-434-293-7043
  • Newsletter Sign-Up
  • Facebook
  • Twitter
  • YouTube
  • Instagram

Other Products

Reflex icon Frax icon Science4Us icon

© 2025 ExploreLearning. All rights reserved. Gizmo and Gizmos are registered trademarks of ExploreLearning. STEM Cases, Handbooks and the associated Realtime Reporting System are protected by US Patent No. 10,410,534

  • Terms and Conditions
  • Privacy Policy
  • Sitemap
  • ExploreLearning and Learning A-Z Integration
  • Accessibility
  • System Requirements