Gizmos for Georgia - Mathematics: Geometry (Georgia Math Standards adopted 2021)

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

G.PAR: : Patterning & Algebraic Reasoning – polynomial expressions

G.PAR.2: : Interpret the structure of and perform operations with polynomials within a geometric framework.

G.PAR.2.1: : Interpret polynomial expressions of varying degrees that represent a quantity in terms of its given geometric framework.

G.PAR.2.2: : Perform operations with polynomials and prove that polynomials form a system analogous to the integers in that they are closed under these operations.

G.PAR.2.3: : Using algebraic reasoning, add, subtract, and multiply single variable polynomials.

G.GSR: : Geometric & Spatial Reasoning – congruence

G.GSR.3: : Experiment with transformations in the plane to develop precise definitions for translations, rotations, and reflections and use these to describe symmetries and congruence to model and explain real-life phenomena.

G.GSR.3.1: : Use geometric reasoning and symmetries of regular polygons to develop definitions of rotations, reflections, and translations.

G.GSR.3.2: : Verify experimentally the congruence properties of rotations, reflections, and translations: lines are taken to lines and line segments to line segments of the same length; angles are taken to angles of the same measure; parallel lines are taken to parallel lines.

G.GSR.3.3: : Use geometric descriptions of rigid motions to draw the transformed figures and to predict the effect on a given figure. Describe a sequence of transformations from one figure to another and use transformation properties to determine congruence.

G.GSR.3.4: : Explain how the criteria for triangle congruence follow from the definition of congruence in terms of rigid motions. Use congruency criteria for triangles to solve problems and to prove relationships in geometric figures.

G.GSR: : Geometric & Spatial Reasoning – geometric foundations, constructions, and proof

G.GSR.4: : Establish facts between angle relations and generate valid arguments to defend facts established. Prove theorems and solve geometric problems involving lines and angles to model and explain real-life phenomena.

G.GSR.4.1: : Use the undefined notions of point, line, line segment, plane, distance along a line segment, and distance around a circular arc to develop and use precise definitions and symbolic notations to prove theorems and solve geometric problems.

G.GSR.4.3: : Make formal geometric constructions with a variety of tools and methods.

G.GSR.4.4: : Prove and apply theorems about lines and angles to solve problems.

G.GSR.4.5: : Use geometric reasoning to establish facts about the angle sum and exterior angle of triangles, about the angles created when parallel lines are cut by a transversal, and the angle-angle criterion for similarity of triangles.

G.GSR: : Geometric & Spatial Reasoning – similarity

G.GSR.5: : Describe dilations in terms of center and scale factor and use these terms to describe properties of dilations; use the precise definition of a dilation to describe similarity and establish the criterion for triangles to be similar; use these terms, definitions, and criterion to prove similarity, model, and explain real-life phenomena.

G.GSR.5.1: : Verify experimentally the properties of dilations.

G.GSR.5.2: : Given two figures, use and apply the definition of similarity in terms of similarity transformations.

G.GSR.5.3: : Use the properties of similarity transformations to establish criterion for two triangles to be similar. Use similarity criteria for triangles to solve problems and to prove relationships in geometric figures.

G.GSR.5.4: : Construct formal proofs to justify and apply theorems about triangles.

G.GSR: : Geometric & Spatial Reasoning – right triangle trigonometry

G.GSR.6: : Examine side ratios of similar triangles; use the relationship between right triangles to develop an understanding of sine, cosine, and tangent to solve mathematically applicable geometric problems and to model and explain real-life phenomena.

G.GSR.6.1: : Explain that by similarity, side ratios in right triangles are properties of the angles in the triangle, leading to definitions of trigonometric ratios for acute angles.

G.GSR.6.2: : Explain and use the relationship between the sine and cosine of complementary angles.

G.GSR.6.3: : Use trigonometric ratios and the Pythagorean Theorem to solve for sides and angles of right triangles in applied problems.

G.GSR: : Geometric & Spatial Reasoning – Trigonometry and the Unit Circle

G.GSR.7: : Explore the concept of a radian measure and special right triangles.

G.GSR.7.1: : Explore and interpret a radian as the ratio of the arc length to the radius of a circle.

G.GSR.7.2: : Explore and explain the relationship between radian measures and degree measures and convert fluently between degree and radian measures.

G.GSR.7.3: : Use special right triangles on the unit circle to determine the values of sine, cosine, and tangent for 30° (pi/6), 45° (pi/4) and 60° (pi/3) angle measures. Use reflections of triangles to determine reference angles and identify coordinate values in all four quadrants of the coordinate plane.

G.GSR: : Geometric & Spatial Reasoning – circles

G.GSR.8: : Examine and apply theorems involving circles; describe and derive arc length and area of a sector; and model and explain real-life frameworks involving circles.

G.GSR.8.1: : Identify and apply angle relationships formed by chords, tangents, secants and radii with circles.

G.GSR.8.3: : Write and graph the equation of circles in standard form.

G.GSR: : Geometric & Spatial Reasoning – equations and measurement

G.GSR.9: : Develop informal arguments for geometric formulas using dissection arguments, limit arguments, and Cavalieri’s principle; solve mathematically applicable problems involving volume; explore and visualize relationships between two-dimensional and three-dimensional objects to model and explain real-life phenomena.

G.GSR.9.1: : Use volume formulas for prisms, cylinders, pyramids, cones, and spheres to solve problems including right and oblique solids.

G.PR: : Probabilistic Reasoning – compound events and expected values

G.PR.10: : Solve problems involving the probability of compound events to make informed decisions; interpret expected value and measures of variability to analyze probability distributions.

G.PR.10.2: : Apply and interpret the general Multiplication Rule conceptually to independent events of a sample space, P(A and B) = [P(A)] × [P(B|A)] = [P(B)] × [P(A|B)] using contingency tables or tree diagrams.

G.PR.10.4: : Define permutations and combinations and apply this understanding to compute probabilities of compound events and solve meaningful problems.

G.PR.10.5: : Interpret the probability distribution for a given random variable and interpret the expected value.

G.PR.10.6: : Develop a probability distribution for variables of interest using theoretical and empirical (observed) probabilities and calculate and interpret the expected value.

G.PR.10.7: : Calculate the expected value of a random variable and interpret it as the mean of a given probability distribution.

Correlation last revised: 5/26/2022

Georgia - Mathematics: Geometry

Georgia Math Standards | Adopted: 2021