options: Find arc lengths and areas of sectors of circles.

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

Make geometric constructions.

Prove geometric theorems.

Explain volume formulas and use them to solve problems.

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

Apply trigonometry to general triangles.

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

Understand and apply the Pythagorean Theorem.

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

Understand and apply theorems about circles.

Define trigonometric ratios and solve problems involving right triangles.

Use coordinates to prove simple geometric theorems algebraically.

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

Experiment with transformations in the plane.

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

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

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.

Prove theorems involving similarity.

Apply geometric concepts in modeling situations.

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

Reason with shapes and their attributes.

Analyze, compare, create, and compose shapes.

Understand similarity in terms of similarity transformations.

Solve real-world and mathematical problems involving volume of cylinders, cones, and spheres.

Understand congruence in terms of rigid motions.
problem_activity: Stage 2: Describe the Flat Shape
Required Preparation
Materials to Gather
Play dough or modeling clay
Straws
Materials to Copy
Blackline Masters
Build Shapes Stage 1 and 2 Cards

Narrative
Students choose a shape card and describe the shape to their partner, who builds the shape based on the description.
Additional Information
Bag of straws per group of 2 students:
At least 6 straws in each size:
\(\frac{1}{2}\)
inch
1 inch
\(1 \frac{1}{2}\)
inch
\(2 \frac{3}{4}\)
inches


correct_option_index: 9

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