Gizmos for Maryland - Mathematics: Grade 8 (College and Career-Ready Standards adopted 2025)

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

NOS: Number and Operation Sense

8.NOS.A: Reason with irrational numbers.

8.NOS.A.1: Identify a number as irrational when its decimal expansion neither terminates nor repeats, and explain that irrational numbers cannot be expressed as the ratio of two integers.

8.NOS.A.2: Use rational approximations of irrational numbers to estimate their locations on a number line, compare their size, and apply this understanding to estimate the value of expressions (e.g., 𝜋²) in context.

8.NOS.B: Reason with exponents to express and interpret quantities.

8.NOS.B.3: Know and apply the properties of integer exponents to generate equivalent numerical expressions.

8.NOS.B.4: Use square and cube roots to represent solutions to equations and describe numbers.

8.NOS.B.5: Apply scientific notation to represent and compare very large and very small quantities in context, and use technology to compute with numbers in scientific notation.

AT: Algebraic Thinking

8.AT.A: Use proportional relationships to represent and reason about linear equations.

8.AT.A.1: Analyze and compare proportional relationships using slope.

8.AT.A.2: Use proportional reasoning to identify slope and represent linear relationships.

8.AT.B: Make sense of and solve equations, inequalities, and systems of equations.

8.AT.B.3: Solve linear equations in one variable.

8.AT.B.4: Solve linear inequalities in one variable.

8.AT.B.5: Analyze and solve systems of two linear equations in two variables.

8.AT.C: Reason about functions.

8.AT.C.6: Determine whether a relationship is a function by analyzing whether each input is assigned to exactly one output.

8.AT.C.8: Identify whether a function is linear or non-linear given equations, graphs, or input-output pairs, and provide a justification using reasoning about the constant rate of change and its relationship to proportional reasoning.

8.AT.D: Model with functions.

8.AT.D.9: Interpret the graph of a linear function in the form 𝑦 = 𝑚𝑥 + 𝑏.

8.AT.D.10: Construct and interpret a linear function to model a relationship between two quantities.

8.AT.D.11: Describe qualitatively the functional relationship between two quantities by analyzing a graph (e.g., where the function is increasing or decreasing, linear or nonlinear). Sketch a graph that exhibits the qualitative features of a function based on a narrative description.

GR: Geometric Reasoning and Measurement

8.GR.A: Make conjectures about and verify geometric relationships.

8.GR.A.1: Use the relationships between supplementary, complementary, vertical, and adjacent angles to write and solve equations for an unknown angle.

8.GR.A.2: Draw or build triangles using tools (ruler, protractor, technology, or physical manipulatives) given three measures of angles or sides. Determine whether the given conditions result in a unique triangle, more than one triangle, or no triangle.

8.GR.A.3: Use informal arguments to verify that the sum of the interior angles of a triangle is 180 degrees and why an exterior angle equals the sum of the two remote interior angles.

8.GR.B: Apply the pythagorean theorem to reason about right triangles.

8.GR.B.4: Understand and reason about the Pythagorean Theorem and its extensions.

8.GR.B.5: Apply the Pythagorean Theorem to solve problems in context.

DS: Reasoning with Data, Statistics, and Probability

8.DS.A: Make sense of statistical inquiry.

8.DS.A.1: Evaluate predictions and conclusions drawn from bivariate data.

8.DS.B: Describe, analyze, and compare data using visual and numerical representations to model situations And draw inferences.

8.DS.B.2: Construct and interpret scatter plots for bivariate measurement data to investigate patterns of association between two quantities. Describe patterns such as clustering, outliers, positive or negative association, linear association, and nonlinear association.

8.DS.B.3: Compare the fit of different linear models shown on scatter plots of the same data by describing the overall pattern and the closeness of data points to each line.

8.DS.B.4: Use a provided linear model to make predictions based on bivariate measurement data. Interpret the meaning of the slope and y-intercept in context.

8.DS.C: Model and analyze probability to interpret chance events and make predictions.

8.DS.C.6: Find probabilities of compound events by representing or simulating the sample space or simulating events.

Correlation last revised: 7/9/2026

Maryland - Mathematics: Grade 8

College and Career-Ready Standards | Adopted: 2025

NOS: Number and Operation Sense

AT: Algebraic Thinking

GR: Geometric Reasoning and Measurement

DS: Reasoning with Data, Statistics, and Probability