All the solutions provided in **McGraw Hill My Math Grade 1 Answer Key PDF Chapter 9 Lesson 1 Squares and Rectangles **will give you a clear idea of the concepts.

## McGraw-Hill My Math Grade 1 Answer Key Chapter 9 Lesson 1 Squares and Rectangles

**Explore and Explain**

__________ squares

___________ rectangles

**Teacher Directions:** Use square and rectangle attribute blocks to make a farm picture. Trace the squares using a red crayon. Trace the rectangles using a blue crayon. Count the shapes. Write how many there are a each shape.

Answer:

Explanation:

I made a farm picture using rectangle and square blocks

I traced the rectangle blocks with blue and square blocks with red

There are 3 rectangles and 3 squares.

**See and Show**

Two-dimensional shapes are flat shapes. They can be open or closed.

Squares and rectangles are two-dimensional shapes. They are closed. They have straight sides and vertices (vertex).

square

rectangle

**Write how many sides and vertices.**

Question 1.

___________ sides

___________ vertices

Answer:

4 sides

4 vertices

Explanation:

A rectangle is a closed shape that has 4 sides and 4 vertices.

Question 2.

___________ sides

___________ vertices

Answer:

4 sides

4 vertices

Explanation:

A square is a closed shape that has 4 sides and 4 vertices.

**Talk Math** How are a rectangle and a square alike?

Answer:

Both the rectangle and square have 4 sides and 4 vertices.

**On Your Own**

**Write how many sides and vertices.**

Question 3.

___________ sides

___________ vertices

Answer:

4 sides

4 vertices

Explanation:

A square is a closed shape that has 4 sides and 4 vertices.

Question 4.

___________ sides

___________ vertices

Answer:

4 sides

4 vertices

Explanation:

A rectangle is a closed shape that has 4 sides and 4 vertices.

Question 5.

___________ sides

___________ vertices

Answer:

4 sides

4 vertices

Explanation:

A chess board is in the shape of a square

A square is a closed shape that has 4 sides and 4 vertices.

Question 6.

___________ sides

___________ vertices

Answer:

4 sides

4 vertices

Explanation:

A door is in the shape of a rectangle

A rectangle is a closed shape that has 4 sides and 4 vertices.

**Circle the objects that match the first shape.**

Question 7.

Answer:

Explanation:

I drew circle around the object that matches with the first shape.

Question 8.

Answer:

Explanation:

I drew circle around the objects that matches with the first shape.

**Circle the closed shapes.**

Question 9.

Answer:

Explanation:

I drew circles around the shapes that are closed.

**Problem Solving**

**Name and draw each shape.**

Question 10.

I am a two-dimensional shape that has 4 vertices. All of my sides are the same length. What shape am I?

Answer:

Explanation:

A square is a two-dimensional shape that has 4 vertices and sides are the same length.

Question 11.

I am a two-dimensional shape that has 4 sides. Two of my sides are long. Two of my sides are short. What shape am I?

Answer:

Explanation:

A rectangle is a two-dimensional shape that has 4 sides. Two of its sides are long and two of the sides are short.

**Write Math** Use the words closed, sides, and vertices to describe the square.

Answer:

A square is a closed shape that has 4 sides and 4 vertices.

### McGraw Hill My Math Grade 1 Chapter 9 Lesson 1 My Homework Answer Key

**Practice**

**Write how many sides and vertices.**

Question 1.

_____________ sides

_____________ vertices

Answer:

4 sides

4 vertices

Explanation:

A square is a closed shape that has 4 sides and 4 vertices.

Question 2.

_____________ sides

_____________ vertices

Answer:

4 sides

4 vertices

Explanation:

A rectangle is a closed shape that has 4 sides and 4 vertices.

Question 3.

_____________ sides

_____________ vertices

Answer:

4 sides

4 vertices

Explanation:

A book is in the shape of a rectangle

A rectangle is a closed shape that has 4 sides and 4 vertices.

Question 4.

_____________ sides

_____________ vertices

Answer:

4 sides

4 vertices

Explanation:

A window is in the shape of a square

A square is a closed shape that has 4 sides and 4 vertices.

**Count and write how many squares and rectangles you see in the robot.**

Question 5.

_____________ squares

Answer:

5 square

Explanation:

There are 5 squares in the given robot.

Question 6.

_____________ rectangles

Answer:

7 rectangles

Explanation:

There are 7 rectangles in the given robot.

**Draw and write the name of the shape.**

Question 7.

I am a two-dimensional shape that has 4 sides that are the same length. What shape am I?

Answer:

Explanation:

A square is a two-dimensional shape that has 4 vertices and sides are the same length.

**Vocabulary Check**

**Draw lines to match.**

Answer:

Explanation:

I drew lines to match the shapes with their names.

**Math at Home** Ask your child to draw a picture using only squares and rectangles.

Answer: