## Go Math Grade 1 Chapter 11 Answer Key Three-Dimensional Geometry

**Curious George**

What three-dimensional shapes do you see in the sand castle?

Answer:

Cone,cylinder,cube.

Explanation:

In the above sand castle there are many three-dimensional shapes that are cone,cylinder,cube.

### Three–Dimensional Geometry Show What You Know

**Alike and Different**

Circle the objects that are alike.

Question 1.

Answer:

Explanation:

In the above shapes there are 2 cubes.So, circle cubes.

Question 2.

Answer:

Explanation:

In the above shapes there are 2 cones.So, circle cones.

**Identify Three-Dimensional Shapes**

Color the blue. Color the red. Color the yellow.

Question 3.

Answer:

Explanation:

The above given shape is cube.So, color it yellow.

Question 4.

Answer:

Explanation:

The above given shape is circle.So, color it blue.

Question 5.

Answer:

Explanation:

The above given shape is cylinder.So, color it red.

**Sort by Size**

Mark an X on the object that does not belong.

Question 6.

Answer:

Explanation:

In the above shapes the 3rd shape is big compared to the others.So, put a cross mark across it.

### Three–Dimensional Geometry Vocabulary Builder

**Visualize It**

Write review words to name the shapes.

Answer:

**Understand Vocabulary**

Look at the three-dimensional shapes. Color the sphere Color the cube Color the cylinder

Question 1.

Answer:

Explanation:

The above given shape is cylinder.So, color it green.

Question 2.

Answer:

Explanation:

The above given shape is sphere.so, color it blue.

Question 3.

Answer:

Explanation:

The above given shape is cube.So, color it yellow

### Three–Dimensional Geometry Game: Shape Match Bingo

Materials • 9 • 9 •

Play with a partner. Take turns.

1. One player uses . The other player uses .

2. Spin . Use a counter to cover a space with that shape.

3. If you cannot cover a space, your turn is over.

4. The first player to cover all of his or her spaces wins.

### Three–Dimensional Geometry Vocabulary Game

**Going Places with GOMATH! words**

**Going on a Train Trip**

For 2 players

**Materials**

**How to Play**

1. Choose a and put it on START.

2. Toss the to take a turn. Move your that many spaces.

3. If you land on these spaces:

**Red Space** Take a Clue Card. Answer the question. If you are correct, move ahead 1. Return the Clue Card to the bottom of the pile.

**Blue Space** Follow the directions on the space.

4. Collect 5 Clue Cards. Move around the track as many times as you need to. Then, follow the closest center path to reach FINISH.

5. The first player to reach FINISH wins.

**The Write Way**

**Reflect**

Choose one idea. Draw and write about it.

• Tell about two of these words.

• Compare a curved surface to a flat surface. Tell how are they alike and how they are different.

Answer:

### Lesson 11.1 Three-Dimensional Shapes

**Essential Question**

How can you identify and describe three-dimensional shapes?

**Listen and Draw**

Draw to sort the three-dimensional shapes.

Answer:

Explanation:

In the above picture there are two different shapes.They are cubes and spheres.

**Math Talk**

**MATHEMATICAL PRACTICES**

Generalize Explain how you sorted the shapes.

**Model and Draw**

These are three-dimensional shapes.

**Share and Show MATH BOARD**

Use three-dimensional shapes. Sort the shapes into three groups. Name and draw the shapes.

Question 1.

only flat surfaces

Answer:

Explanation:

Rectangular prism and cube both have only flat surfaces.

Question 2.

only a curved surface

Answer:

Explanation:

Sphere has only a curved surface.

Question 3.

both flat and curved surfaces

Answer:

Explanation:

Cone and cylinder both have flat and curved surfaces.

**On Your Own**

**MATHEMATICAL PRACTICE**

Use Models Use three-dimensional shapes.

Write the number of flat surfaces for each shape.

Question 4.

A rectangular prism has __ flat surfaces.

Answer:

A rectangular prism has 6 flat surfaces.

Question 5.

A cube has __ flat surfaces.

Answer:

A cube has 6 flat surfaces

Question 6.

A cylinder has __ flat surfaces.

Answer:

A cylinder has 2 flat surfaces

Question 7.

A sphere has __ flat surfaces

Answer:

A sphere has 0 flat surfaces

**GO DEEPER**

Write to name each shape.

Question 8.

Question 9.

Answer:

Explanation:

The above given shape is cone.So, write cone.

Question 10.

Answer:

Explanation:

The above shape is cube.So, write cube.

Question 11.

Answer:

Explanation:

The above given shape is cylinder.So, write cylinder.

Question 12.

Answer:

Explanation:

The above givem shape is rectangular prism.So, write rectangular prism.

**Problem Solving • Applications**

Circle the objects that match the clues

Question 13.

Kelly drew objects that have both flat and curved surfaces.

Answer:

Explanation:

In the above objects the circled objects have both flat and curved surfaces.

Question 14.

Sandy drew some rectangular prisms.

Answer:

Explanation:

The circled objects in the above picture are in the shape of rectangular prisms.

Question 15.

Match each shape to the group where it belongs

Answer:

Explanation:

Cone and cylinder have both flat and curved surfaces, cube and rectangular prism have only flat surfaces an dthe sphere has only a curved surface.

**TAKE HOME ACTIVITY**

• Ask your child to name real objects shaped like a sphere, a rectangular prism, and a cylinder.

### Three-Dimensional Shapes Homework & practice 11.1

**Three-Dimensional Shapes**

Use three-dimensional shapes. Write the number of flat surfaces for each shape.

Question 1.

A cylinder has __ flat surfaces.

Answer:

A cylinder has 2 flat surfaces.

Question 2.

A rectangular prism has _ flat surfaces.

Answer:

A rectangular prism has 6 flat surfaces.

Question 3.

A cone has _ flat surface.

Answer:

A cone has 1 flat surface.

Question 4.

A cube has _ flat surfaces.

Answer:

A cube has 6 flat surfaces.

**Problem Solving**

Question 5.

Circle the object that matches the clue. Mike finds an object that has only a curved surface.

Answer:

Explanation:

Th circled object in the above objects is sphere.A sphere has only a curved surface.

Question 6.

**WRITE Math**

Use pictures or words to describe a cone.

Answer:

**Lesson Check**

Question 1.

Circle the shape that has both flat and curved surfaces.

Answer:

Explanation:

The circled shape in the above shapes has both flat and curved surfaces.

Question 2.

Circle the shape that has only a curved surface.

Answer:

Explanation:

The circled shape in the above shapes is a sphere.A sphere has only curved surface.

**Spiral Review**

Question 3.

Count forward. Write the number that is missing.

109, 110, 111, __, 113

Answer:

109,110,111,112,113.

Explanation:

There is a missng number in between the given number.Count forward.112 comes after 111.So, the missing number is 112.

Question 4.

What is the sum of 2 and 3? Write the number sentence.

Answer:

Explanation:

When we add 2 and 3, the sum is 5.So, 2+3=5.

### Lesson 11.2 Combine Three-Dimensional Shapes

**Essential Question**

How can you combine three-dimensional shapes to make new shapes?

Answer:

To make new shapes using three-dimensional shapes we have to put the shapes above,below or besides the the other shape so that a new shape will be formed.

**Listen and Draw**

Trace to draw the new shape. Write to name the new shape.

Answer:

Explanation:

The above shapes are made by combing two shapes.The new shapes are cylinder and rectangular prism.

**Math Talk**

**MATHEMATICAL PRACTICES**

Apply Describe the new shapes Mandy and Carl made.

**Model and Draw**

You can put shapes together to make a new shape.

**Share and Show MATH BOARD**

Use three-dimensional shapes.

Answer:

Explanation:

In the above shapes the circled shapes are the shapes that are made by combing the given shapes besides them.

**On Your Own**

**MATHEMATICAL PRACTICE**

**Attend to Precision**

Use three-dimensional shapes.

Answer:

Explanation:

In the above shapes the circled shapes are the shapes that are made by combing the given shapes besides them.

**Problem Solving • Applications WRITE Math**

**GO DEEPER**

Circle the shapes you could use to model the ice cream cone.

Question 9.

Answer:

Explanation:

In the above shapes the circles shapes make the icecream.

Question 10.

Circle the ways that make the same shape.

Answer:

Explanation:

The circled shapes in the above shapes is a cube and is formed by combining cubes.

Question 11.

Combine and .

Choose all the new shapes you can make.

Answer:

Explanation:

The marked shapes in the above picture are formed by combing the two given shapes that are rectangular prism and a cone.

**TAKE HOME ACTIVITY**

• Ask your child to show you two different new shapes he or she can make by combining a soup can and a cereal box.

### Combine Three-Dimensional Shapes Homework & Practice 11.2

Use three-dimensional shapes.

Answer:

Explanation:.

The circled shapes in the above picture are formed by combing the two given shapes besides them.

**Problem Solving**

Question 3.

Circle the shapes you could use to model the bird feeder.

Answer:

Explanation:

The circled shapes cone and the cylinder are used to make the model the bird feeder

Question 4.

**WRITE Math**

Combine two shapes to make a new shape. Describe how you put the shapes together.

_____________

_____________

_____________

_____________

Answer:

We can put the shapes together by placing the shapes one beside,above or below the other shapes.

**Lesson Check**

Question 1.

Circle the shape that combines and

Answer:

Explanation:

The circled shapes in the above picture are formed by combing the two given shapes cylinder and cone.

**Spiral Review**

Question 2.

Write the sum. Write how many tens.

40 + 20 = __ __ tens

Answer:

40+20=60=6 tens

Explanation:

When we add 4 tens and 2 tens we get 6 tens.

Question 3.

Emi has 15 crayons. She gives some crayons to Jo. Now she has 9 crayons. How many crayons did Emi give to Jo? Use the model to solve

__ crayons

Answer:

6 crayons

Explanation:

Emi has 15 crayons. She gives some crayons to Jo. Now she has 9 crayons.When we subtract 9 from 15 we get 6.So, the number of crayons Emi gave to Jo are 6 crayons.

### Lesson 11.3 Make New Three-Dimensional Shapes

**Essential Question**

How can you use a combined shape to build new shapes?

**Listen and Draw**

Draw to copy the shape.

**Math Talk**

**MATHEMATICAL PRACTICES**

**Describe** how to draw to copy the new shape.

**Model and Draw**

Answer:

Explanation:

By repeating the bulided shape we can make the circled shape.We cannot make the other shape because its not like the shape given.

**Share and Show MATH BOARD**

Use three-dimensional shapes

Answer:

Explanation:

In the above shapes the circled shapes are the shapes that are made by combing the given shapes besides them.

**On Your Own**

**MATHEMATICAL PRACTICE**

Use a Concrete Model

Use three-dimensional shapes.

Answer:

In the above shapes the circled shapes are the shapes that are made by combing the given shapes besides them.

Question 7.

**THINK SMARTER**

Look at the shape.

How many are used to make the shape?

Answer:

Explanation:

The given shape is made by combining the 2 cubes 3 times.

How many are used to make the shape?

Answer:

Explanation:

The given shape is made by combining 1 cube 6 times.

**TAKE HOME ACTIVITY**

• Ask your child to explain how he or she solved Exercise 4.

### Make New Three-Dimensional Shapes Homework & Practice 11.3

Use three-dimensional shapes.

Answer:

In the above shapes the circled shapes are the shapes that are made by combing the given shapes besides them.

Question:

Answer:

Explanation:

The above shape is formed by repeating the given shape.

Question 4.

**WRITE Math**

Use a cube and a cylinder to build a new shape. Repeat. Draw to show how you can combine these two new shapes to make a larger shape.

Answer:

Explanation:

By drawing a cube and a cylinder and repeating it we can make a larger shape like the above.

**Lesson Check**

Question 1.

Which new shape can you make? Circle the shape.

Answer:

Explanation:

In the above shapes the circled shapes are the shapes that are made by combing the given shapes above them.

**Spiral Review**

Question 2.

Which addition fact helps you solve 15 − 6 = ? Write the number sentence.

__ + __ = __

Answer:

6+3=9

Explanation:

When we add 6 and 3 we get the sum 9.Therefore the sum of 6 and 3 is 9.

Question 3.

Which doubles fact helps you solve 5 + 6 = 11?

Circle the number sentence.

Answer:

Explanation:

When we add 5 and 6 we get the sum as 11.The dobubles fact 5+5=10 helps us to solve 5+6=11.

### Three–Dimensional Geometry Mid-Chapter Check Point

**Concepts and Skills**

Question 1.

Circle the rectangular prisms.

Question 2.

Draw a line under the shapes that have both flat and curved surfaces.

Answer:

Explanation:

The circled ojects in the above picturehave both flat and curved surfaces.

Use three-dimensional shapes.

Answer:

Explanation:

The circled object in the above picture is formed by combining the shapes cube and cone.

Question 4.

**THINK SMARTER**

Which new shape can you make?

Answer:

Explanation:

When we combine and repeat the shape given in the question we get the third shape marked in the above picture.

### Lessson 11.4 Problem Solving • Take Apart Three-Dimensional Shapes

**Essential Question**

How can acting it out help you take apart combined shapes?

Mike has and . He chose some shapes to build a bridge. Which shapes did Mike use to build the bridge?

**Unlock the Problem**

What do I need to find?

What information do I need to use?

Mike has these shapes.

Show how to solve the problem.

Answer:

Explanation:

The above shape is made by combining the circled shapes cylinder and rectangular prism.

**HOME CONNECTION**

• Your child is investigating how shapes can be taken apart. Being able to decompose shapes into smaller parts provides a foundation for future work with fractions.

**Try Another Problem**

Kim used shapes to build this castle.

Use three-dimensional shapes. Circle your answer.

Question 1.

Which shapes did Kim use to build the tower?

Answer:

Explanaton:

Kim made the tower by combining the circled shapes cone and a cylinder.

Question 2.

Which shapes did Kim use to build this wall?

Answer:

Explanation:

Kim made the wall by combining the circled shapes cube and rectangular prism.

Question 3.

Which shapes did Kim use to build this wall?

Answer:

Explanation:

Kim made the above wall by combining the above circled shapes cylinder and cube.

Question 4.

Which shapes did Kim use to build the gate?

Answer:

Explanation:

Kim bulid the above gate by combining the circled shapes cylinder and rectangular prism.

**Math Talk**

**MATHEMATICAL PRACTICES**

Look for Structure How do you know which shapes Kim used to build the tower?

**Share and Show MATH BOARD**

**MATHEMATICAL PRACTICE**

Analyze Use three-dimensional shapes. Circle your answer.

Question 5.

Zack used shapes to build this gate. Which shapes did Zack use?

Answer:

Explanation:

zack build the gate by using the circled shapes cone and rectangular prism.

Question 6.

Chris used shapes to build this wall. Which shapes did Chris use?

Answer:

Explanation:

Chris build the above wall by using the circled shapes cylinder,cube and rectangular prism.

Question 7.

**THINK SMARTER**

Rosa uses and to build a tower. Draw to show a tower Rosa could build.

Answer:

Explanation:

Roscone and cylinder.a build the tower by using the shapes .

**On Your Own**

**GO DEEPER**

Circle the ways that show the same shape.

Question 8.

Answer:

Explanation:

The circled shape in the above pictures is a cube and it is formed by combining cubes only.

Question 9.

**THINK SMARTER**

Answer:

Explanation:

The circled shape in the above pictures is a cube and it is formed by combining cubes only.

Question 10.

**THINK SMARTER**

Sharon has many different blocks. She built this shape with her blocks.

Choose all the shapes Sharon used.

Answer:

Explanation:

Sharon made the shapes by using the shapes cube and rectangular prism.

**TAKE HOME ACTIVITY**

• Use real items such as a soup can (cylinder) and a cereal box (rectangular prism) to build a shape. Ask your child to name the shapes you used.

### Problem Solving • Take Apart Three-Dimensional Shapes Homework & practice 11.4

**Use three-dimensional shapes.**

**Circle your answer.**

Question 1.

Paco used shapes to build this robot. Circle the shapes he used.

Answer:

Explanation:

Paco made a robot by using the circled shapes cylinder and rectangular prism.

**Problem Solving**

Question 2.

Circle the ways that show the same shape.

Answer:

Explanation:

The circled shape in the above picture is a rectangular prism and it is made by combining rectangular prisms only.

Question 3.

**WRITE Math**

Draw a picture of a house made from shapes. Write the shape names you used.

Answer:

Explanation:

I made a by using some shapes that are cone and rectangular prisms.

**Lesson Check**

Question 1.

Lara made this picture frame. Circle the shapes she used to make the frame

Answer:

Explanation:

The circled shapes in the above picture are used by lara to make the picture frame.

**Spiral Review**

Question 2.

Compare each pair of numbers. Write <, >, or =.

Answer:

Explanation:

In the above picture we used the symbols <,> and = to compare the numbers.

13 is lessthan 31 so, use < symbol to compare

13 is equal to 13 so, use = symbol to compare

31 is greaterthan 13 so, use > symbol to compare

31 isnequal to 31 so, use = symbol to compare.

Question 3.

Subtract. What is the difference? Write the number.

60 – 30 = __

Answer:

60-30=30.

Explanation:

When we subtract 30 from 60 we get 30.3 tens fro 6 tens is 3 tens.Therefore 60-30=30.

### Lesson 11.5 Two-Dimensional Shapes on Three-Dimensional Shapes

**Essential Question**

What two-dimensional shapes do you see on the flat surfaces of three-dimensional shapes?

**Listen and Draw**

Use a cone.

**Math Talk**

**MATHEMATICAL PRACTICES**

Analyze What other shape could you use to draw the same kind of picture?

Answer:

I could have used circle to draw the same kind of picture.

**Model and Draw**

Trace around the flat surfaces of the three-dimensional shape to find the two-dimensional shapes.

Answer:

Explanation:

When we trace around the flat surfaces of the three-dimensional shapes we get two-dimensional shapes they are square and rectangle.

**Share and Show MATH BOARD**

Use three-dimensional shapes. Trace around the flat surfaces. Circle the shapes you draw.

Question 1.

Answer:

Explanation:

When we trace around the flat surfaces of the three-dimensional shape cube we get two-dimensional shape that is square.

Question 2.

Answer:

Explanation:

When we trace around the flat surfaces of the three-dimensional shape cylinder we get two-dimensional shape that is circle.

Question 3.

Answer:

Explanation:

When we trace around the flat surfaces of the three-dimensional shape rectangular prism we get two-dimensional shapes they are square and rectangle.

**On Your Own**

**MATHEMATICAL PRACTICE**

Make Connections Circle the objects you could trace to draw the shape.

Question 4.

Answer:

Explanation:

When we trace around the flat surfaces of the three-dimensional object which is circled abovewe get two-dimensional shape that is rectangle.

Question 5.

Answer:

Explanation:

When we trace around the flat surfaces of the three-dimensional objects which are circled above we get two-dimensional shape that is circle.

Question 6.

Answer:

Explanation:

When we trace around the flat surfaces of the three-dimensional objects which are circled above we get two-dimensional shape that is square.

Question 7.

Answer:

Explanation:

When we trace around the flat surfaces of the three-dimensional object which is circled abovewe get two-dimensional shape that is rectangle.

Question 8.

**THINK SMARTER**

Draw a shape you would make if you traced this object.

Answer:

Explanation:

When we trace around the flat surfaces of the three-dimensional shape which is given above we get two-dimensional shape that is triangle.

**Problem Solving • Applications**

Circle the shape that the pattern will make if you fold it and tape it together.

Question 9.

Answer:

Explanation:

If we fold the above given pattern we get the three-dimensional shape that is rectangular prism.

Question 10.

Answer:

Explanation:

If we fold the above given pattern we get the three-dimensional shape that is cube.

Question 11.

**THINK SMARTER**

Kei wants to trace a She finds these objects. Which object should she use?

Answer:

Explanation:

Kie wants to trace a rectangle.If he trace the flat surfaces of the gift box which is circled above he gets a two-dimensional shape rectangle.

What would happen if Kei used the to trace a shape?

Answer:

Explanation:

If kie trace the above given object he gets the two-dimensional shape that is circle.

**TAKE HOME ACTIVITY**

• Collect a few three-dimensional objects, such as boxes, that are shaped like rectangular prisms or cubes. Ask your child what two-dimensional shapes are on those objects.

### Two-Dimensional Shapes on Three-Dimensional Shapes Homework & practice 11.5

Circle the objects you could trace to draw the shape.

Question 1.

Answer:

Explanation:

When we trace around the flat surfaces of the three-dimensional objects which are circled above we get two-dimensional shape that is rectangle.

Question 2.

Answer:

Explanation:

When we trace around the flat surfaces of the three-dimensional objects which are circled above we get two-dimensional shape that is circle.

**Problem Solving**

Question 3.

Look at this shape. Draw the shape you would make if you traced this object.

Answer:

Explanation:

When we trace around the flat surfaces of the three-dimensional object which is given above we get two-dimensional shape that is circle.

Question 4.

**WRITE Math**

Use pictures or words to explain how you would describe the shapes of flat surfaces you may see on a tissue box.

Answer:

**Lesson Check**

Question 1.

Which flat surface does a cone have? Circle the shape.

Answer:

Explanation:

When we trace around the flat surfaces of the three-dimensional object cone which is mentioned above we get two-dimensional shape that is circle.

Question 2.

Which flat surfaces could a rectangular prism have? Circle the pair of shapes.

Answer:

Explanation:

When we trace around the flat surfaces of the three-dimensional object rectangular prism which is mentioned above we get two-dimensional shape that is rectangle and square.

**Spiral Review**

Write a subtraction sentence to solve.

Question 3.

Jade has 8 books. She gives some of them to Dana. Now Jade has 6 books. How many did she give to Dana?

__ – __ = __

__ books

Answer:

8-6=2

2 books

Explanation:

Jade has 8 books. She gives some of them to Dana. Now Jade has 6 books.

8-6=2

Therefore, the number of books she give to Dana are 2.

Question 4.

Write the sum.

3 + 0 = __

Answer:

3+0=3

Explanation:

If we add any number with zero we get the sum same as the number we added.

### Three–Dimensional Geometry Chapter 11 Review/Test

Question 1.

Match each shape to the group where it belongs.

Answer:

Explanation:

The shapes that has only flat surfaces are cube and rectangular prism

The shapes that has only a curved surface is a sphere

The shapes that has both flat and curved surfaces are cone and cylinder.

Question 2.

Combine and Choose all the new shapes you can make.

Answer:

Explanation:

The marked shapes in the above picture can be made by joining the shapes cube and cylinder given above.

Question 3.

Build and repeat. Choose Yes or No.

Answer:

Question 4.

Damon built this shape.

Choose all the shapes Damon used.

Answer:

Explanation:

Demon used the marked shapes cube and cone to build the shape given above.

Question 5.

Circle the number that makes the sentence true

Answer:

Explanation:

When we trace the flat surface of the three-dimensional shape cone we get a two-dimensional shape that is circle.

Question 6.

**GO DEEPER**

Sara wants to trace a . She finds these objects.

Which object should she use?

Answer:

Explanation:

When sara trace the flat surface of the shape given above he will get the two-dimensionla shape that is circle.

What would happen if she used the to trace a shape?

Answer:

Question 7.

Which shape has only 2 flat surfaces?

Answer:

Explanation:

In the above given shapes the marked shape cylinder has 2 flat surfaces.

Question 8.

Look at the shape.

How many are used to make the shape?

Answer:

Explanation:

We need 3 to make the above shape.

Question 9.

Ellen built this shape.

Which objects did Ellen use? Circle them.

Answer:

Explanation:

Ellen used the above circled shapes cylinder and rectangular prism to build the shape given.

Draw another way to combine the objects

Answer:

Explanation:

When we combine the two shapes cylinder and rectangular prism we can also build another shape mentioned above.

Question 10.

**THINK SMARTER**

Hector built this shape.

Choose all the shapes Hector used

Answer:

Explanation:

Hector build the above shape by using the marked shapes from the picture given they are cone, cube and cylinder.