Code |
Description |
MA.912.G.2.1: | Identify and describe convex, concave, regular, and irregular polygons. |
MA.912.G.2.2: | Determine the measures of interior and exterior angles of polygons, justifying the method used. |
MA.912.G.2.3: | Use properties of congruent and similar polygons to solve mathematical or real-world problems. |
MA.912.G.2.4: | Apply transformations (translations, reflections, rotations, dilations, and scale factors) to polygons. to determine congruence, similarity, and symmetry. Know that images formed by translations, reflections, and rotations are congruent to the original shape. Create and verify tessellations of the plane using polygons. |
MA.912.G.2.5: | Explain the derivation and apply formulas for perimeter and area of polygons (triangles, quadrilaterals, pentagons, etc.). |
MA.912.G.2.6: | Use coordinate geometry to prove properties of congruent, regular and similar polygons, and to perform transformations in the plane. |
MA.912.G.2.7: | Determine how changes in dimensions affect the perimeter and area of common geometric figures. |
This cluster includes the following access points.
Access Point Number |
Access Point Title |
MA.912.G.2.In.a: | Determine if polygons have all sides and angles equal (regular) or have sides or angles that are not equal (irregular) using physical and visual models. |
MA.912.G.2.In.b: | Use tools to measure angles including 45° and 90°. |
MA.912.G.2.In.c: | Identify triangles and rectangles that are the same shape and size (congruent) and same shape, but not same size (similar) using physical and visual models. |
MA.912.G.2.In.d: | Use physical and visual models to show that a change in orientation, such as turns (rotations), slides (translations), and flips (reflections), does not change the size or shape of a polygon. |
MA.912.G.2.In.e: | Find the perimeter and area of rectangles to solve real-world problems. |
MA.912.G.2.In.f: | Identify the effects of changes in the lengths of sides on the perimeter and area of rectangles using visual models to solve real-world problems. |
Access Point Number |
Access Point Title |
MA.912.G.2.Su.a: | Identify polygons with all sides and angles equal (regular) in the environment. |
MA.912.G.2.Su.b: | Use a model of a right triangle to compare the size of angles, such as acute, obtuse, and right angles. |
MA.912.G.2.Su.c: | Match triangles and rectangles that are same shape, but different size (similar) using physical and visual models. |
MA.912.G.2.Su.d: | Match identical polygons in different positions including turns (rotations), slides (translations), and flips (reflections), using physical models. |
MA.912.G.2.Su.e: | Solve real-world problems involving perimeter using visual models. |
MA.912.G.2.Su.f: | Solve real-world problems to find area of a rectangle to identify total square units using visual models. |
MA.912.G.2.Su.g: | Identify the effect of changes in the lengths of sides of rectangles on perimeter using physical and visual models. |
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