Refer to our Texas Go Math Grade 1 Answer Key Pdf to score good marks in the exams. Test yourself by practicing the problems from Texas Go Math Grade 1 Lesson 15.2 Answer Key Attributes of Three-Dimensional Solids.

## Texas Go Math Grade 1 Lesson 15.2 Answer Key Attributes of Three-Dimensional Solids

**Explore**

Draw to sort the three-dimensional solids.

Answer:

FOR THE TEACHER • Have children sort the three-dimensional solids into two groups. Have them draw around each group to show how they sorted.

Answer:

**Math Talk**

**Mathematical Processes**

Explain how you sorted the solids.

Answer: Cube has 6 flat surfaces and Sphere has 0 flat surfaces.

**Model and Draw**

Look at the surfaces on these three-dimensional solids. Some are flat. Some are curved.

**Share and Show**

**Use spheres, cones, and cylinders. Sort the solids into two groups. Name and draw the solids.**

Question 1.

only a curved surface

Answer:

Explanation:

A sphere has only a curved surface with no flat and curved surfaces.

Question 2.

both flat and curved surfaces

Answer:

Explanation:

A cone has 1 flat surface and 1 curved surface,

A cylinder has 2 flat surfaces and 1 curved surface.

**Problem Solving**

Use three-dimensional solids. Write the number of flat surfaces for each shape. Exercise 3-8 can help you write the shape names

Question 3.

A cylinder has _________ flat surfaces.

Answer: A cylinder has 2 flat surfaces.

Question 4.

A cone has ___________ flat surface.

Answer: A cone has 1 flat surface.

Question 5.

A sphere has _________ flat surfaces.

Answer: A sphere has no flat surfaces.

**H.O.T.** Write to name each shape.

Question 6.

Question 7.

Answer: Cone

Question 8.

Answer: Cylinder

Question 9.

**H.O.T. Multi-Step** Kelly drew objects that have both flat and curved surfaces. Circle the objects she drew.

Answer:

**Daily Assessment Task**

**Choose the correct answer.**

Question 10.

Lorna wins a toy that has no flat surfaces. Which solid ¡s the shape of the toy she wins?

Answer: A sphere has no flat surface, Lorna wins a sphere shaped toy.

Question 11.

**Analyze** Gerri has a can that is shaped like a cylinder. How many flat surfaces does the can have?

(A) 2

(B) 4

(C) 1

Answer:

A cylinder has 2 flat surfaces, Gerri has a can that is shaped like a cylinder with 2 flat surfaces.

Question 12.

Which solid has only 1 flat surface?

Answer: A cone has only 1 flat surface.

Question 13.

**Texas Test Prep** Which solid has 2 flat surfaces?

Answer: A cylinder has 2 flat surfaces.

**TAKE HOME ACTIVITY** • Ask your child to name real objects shaped like a sphere, a cone, and a cylinder.

Answer:

### Texas Go Math Grade 1 Lesson 15.2 Homework and Practice Answer Key

**Draw each solid.**

Question 1.

cone

Answer:

Question 2.

cylinder

Answer:

Question 3.

sphere

Answer:

**Problem Solving**

**Write the name of each solid shape.**

Question 4.

A has 0 flat surfaces.

Answer: Sphere

Question 5.

A has 1 flat surface.

Answer: A cone has 1 flat surface.

Question 6.

A has 2 flat surfaces.

Answer: A cylinder has 2 flat surfaces.

**Lesson Check**

**Choose the correct answer.**

Question 7.

Emma plays a music toy with a curved surface and 2 flat surfaces. Which solid is the shape of the toy she plays?

Answer: A cylinder has 1 curved surface and 2 flat surfaces, Emma plays with a musical toy which is in cylindrical shape.

Question 8.

Jason has a toy shaped like a sphere. How many flat surfaces does the toy have?

(A) 0

(B) 1

(C) 2

Answer: A sphere has 0 flat surface, Jason toy has 0 flat surface

Question 9.

Bailey used blocks to build a tower. She used blocks with 2 flat surfaces. Which block did she use?

Answer: A cylinder has 2 flat surfaces and 1 curved surface, Bailey uses cylindrical blocks to build a tower.

Question 10.

**Multi-Step** Which solid has a flat surface and a curved surface?

Answer: A cone has 1 flat surface and 1 curved surface.