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

Prove theorems involving similarity.

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

Find arc lengths and areas of sectors of circles.

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

Understand congruence in terms of rigid motions.

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

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

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

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

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

Apply geometric concepts in modeling situations.

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

Understand and apply the Pythagorean Theorem.

Experiment with transformations in the plane.

Analyze, compare, create, and compose shapes.

Apply trigonometry to general triangles.

Make geometric constructions.

Reason with shapes and their attributes.

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

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

Explain volume formulas and use them to solve problems.

Define trigonometric ratios and solve problems involving right triangles.

Understand and apply theorems about circles.

Understand similarity in terms of similarity transformations.

Prove geometric theorems.

Use coordinates to prove simple geometric theorems algebraically.
problem_activity: Narrative
This warm-up prompts students to carefully compare 4 shapes. The shapes are designed so that students may compare the color of the shapes as well as geometric attributes.
Launch
Groups of 2
Display the image.
“Pick one that doesn’t belong. Be ready to share why it doesn’t belong.”
Activity
30 seconds: quiet think time
30 seconds: partner discussion
Share and record responses.
Student Facing
Which one doesn’t belong?
A
[IMG]
B
[IMG]
C
[IMG]
D
[IMG]
Student Response
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Activity Synthesis
Display shapes A and B.
“What is alike, or the same, about these shapes?” (They both have three sides. They are both triangles. They are both red.)
“What is different about these shapes?” (One is colored in and one is not. One is smaller or skinnier.)


correct_option_index: 15