# Unit 7: My Reflections

## Lesson 1: Relationships of Angles

• I can find unknown angle measures by reasoning about adjacent angles with known measures.
• I can recognize when an angle measures $90^\circ$, $180^\circ$, or $360^\circ$.

• I can recognize when adjacent angles are complementary or supplementary.
• I can find unknown angle measures by reasoning about complementary or supplementary angles.

• I can determine if angles that are not adjacent are complementary or supplementary.
• I can explain what vertical angles are in my own words.

## Lesson 4: Solving for Unknown Angles

• I can reason through multiple steps to find unknown angle measures.
• I can recognize when an equation represents a relationship between angle measures.

## Lesson 5: Using Equations to Solve for Unknown Angles

• I can write an equation to represent a relationship between angle measures and solve the equation to find unknown angle measures.

## Lesson 6: Building Polygons (Part 1)

• I can show that the 4 side lengths that form a quadrilateral can be rearranged to form different quadrilaterals.
• I can show that the 3 side lengths that form a triangle cannot be rearranged to form a different triangle.

## Lesson 7: Building Polygons (Part 2)

• I can show whether or not 3 side lengths will make a triangle.
• I can reason about a figure with an unknown angle.

## Lesson 8: Triangles with 3 Common Measures

• I understand that changing which sides and angles are next to each other can make different triangles.

## Lesson 9: Drawing Triangles (Part 1)

• Given two angle measures and one side length, I can draw different triangles with these measurements or show that these measurements determine one unique triangle or no triangle.

## Lesson 10: Drawing Triangles (Part 2)

• Given two side lengths and one angle measure, I can draw different triangles with these measurements or show that these measurements determine one unique triangle or no triangle.

## Lesson 11: Slicing Solids

• I can picture different cross sections of prisms and pyramids.
• I can explain that when a three dimensional figure is sliced it creates a face that is two dimensional.

## Lesson 12: Volume of Right Prisms

• I can explain why the volume of a prism can be found by multiplying the area of the base and the height of the prism.

## Lesson 13: Decomposing Bases for Area

• I can calculate the the volume of a prism with a complicated base by decomposing the base into quadrilaterals or triangles.

## Lesson 14: Surface Area of Right Prisms

• I can picture the net of a prism to help me calculate its surface area.
• I can find and use shortcuts when calculating the surface area of a prism.

## Lesson 15: Distinguishing Volume and Surface Area

• I can decide whether I need to find the surface area or volume when solving a problem about a real-world situation.

## Lesson 16: Applying Volume and Surface Area

• I can solve problems involving the volume and surface area of children’s play structures.

## Lesson 17: Building Prisms

• I can build a triangular prism from scratch.