options: Understand and apply the Pythagorean Theorem.

Solve real-world and mathematical problems involving area, surface area, and volume.

Understand congruence in terms of rigid motions.

Identify and describe shapes (squares, circles, triangles, rectangles, hexagons, cubes, cones, cylinders, and spheres).

Draw, construct, and describe geometrical figures and describe the relationships between them.

Experiment with transformations in the plane.

Translate between the geometric description and the equation for a conic section.

Use coordinates to prove simple geometric theorems algebraically.

Understand congruence and similarity using physical models, transparencies, or geometry software.

Solve real-life and mathematical problems involving angle measure, area, surface area, and volume.

Apply geometric concepts in modeling situations.

Reason with shapes and their attributes.

Draw and identify lines and angles, and classify shapes by properties of their lines and angles.

Prove geometric theorems.

Understand and apply theorems about circles.

Make geometric constructions.

Visualize relationships between two-dimensional and three-dimensional objects.

Define trigonometric ratios and solve problems involving right triangles.

Find arc lengths and areas of sectors of circles.

Analyze, compare, create, and compose shapes.

Explain volume formulas and use them to solve problems.

Graph points on the coordinate plane to solve real-world and mathematical problems.

Understand similarity in terms of similarity transformations.

Apply trigonometry to general triangles.

Prove theorems involving similarity.

Classify two-dimensional figures into categories based on their properties.

Solve real-world and mathematical problems involving volume of cylinders, cones, and spheres.
problem_activity: Stage 1: Lines of Symmetry
Required Preparation
Materials to Gather
Colored pencils, crayons, or markers
Materials to Copy
Blackline Masters
Centimeter Grid Paper - Standard
Centimeter Dot Paper - Standard

Narrative
Each student chooses whether to use dot or grid paper. Each student creates a half of a design and draws a line of symmetry. Students switch paper and complete each other’s designs.


correct_option_index: 12