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## Texas Go Math Grade 2 Lesson 4.2 Answer Key Show Equal Parts of a Whole

**Explore**

Circle the shapes that show equal parts.

Answer:

Explanation:

As, we learnt in the previous chapter in 4.1 about equal parts,

The above circled pictures are equally divided into halves, fourths and eighths.

**HOME CONNECTION** • Your child completed this sorting activity with shapes to review the concept of equal parts.

Answer:

Yes, with this activities the child can easily get the concept of equal parts like,

halves, fourths and eights.

**Math Talk**

**Mathematical Processes**

Does the triangle show halves? Explain.

Answer:

Yes, triangle show halves.

Explanation:

If a whole is divided into 2 equal parts, each part is a Half.

A Half is obtained by dividing a whole (1) by 2.

**Model and Draw**

You can draw to show equal parts of a whole.

**Share and Show**

**Draw to show equal parts.**

Question 1.

eighths

Answer:

Explanation:

If a whole is divided into eight equal parts, each part is an Eighth.

An eighth is obtained by dividing a whole (1) by 8.

Question 2.

halves

Answer:

Explanation:

If a whole is divided into 2 equal parts, each part is a Half.

A Half is obtained by dividing a whole (1) by 2.

Question 3.

fourths

Answer:

Explanation:

If a whole is divided into four equal parts, each part is a *FOURTH*.

A fourth is obtained by dividing a whole (1) by 4.

Question 4.

halves

Answer:

Explanation:

If a whole is divided into 2 equal parts, each part is a Half.

A Half is obtained by dividing a whole (1) by 2.

Question 5.

fourths

Answer:

Explanation:

If a whole is divided into four equal parts, each part is a *FOURTH*.

A fourth is obtained by dividing a whole (1) by 4.

Question 6.

eighths

Answer:

Explanation:

If a whole is divided into 8 equal parts, each part is an eighth.

An eighth is obtained by dividing a whole (1) by 8.

**Problem Solving**

**Draw to show equal parts.**

Question 7.

halves

Answer:

Explanation:

If a whole is divided into 2 equal parts, each part is a Half.

A Half is obtained by dividing a whole (1) by 2.

Question 8.

fourths

Answer:

Explanation:

If a whole is divided into four equal parts, each part is a *FOURTH*.

A fourth is obtained by dividing a whole (1) by 4.

Question 9.

eighths

Answer:

Explanation:

If a whole is divided into 8 equal parts, each part is an eighth.

An eighth is obtained by dividing a whole (1) by 8.

Question 10.

eighths

Answer:

Explanation:

If a whole is divided into 8 equal parts, each part is an eighth.

An eighth is obtained by dividing a whole (1) by 8.

Question 11.

halves

Answer:

Explanation:

If a whole is divided into 2 equal parts, each part is a Half.

A Half is obtained by dividing a whole (1) by 2.

Question 12.

fourths

Answer:

Explanation:

If a whole is divided into four equal parts, each part is a *FOURTH*.

A fourth is obtained by dividing a whole (1) by 4.

Question 13.

**H.O.T.** Colton and three friends want to share a pizza equally. Draw to show how the pizza should be divided.

Answer:

Explanation:

Colton and three friends want to share a pizza equally.

So, total equal parts they want 4.

If a whole is divided into four equal parts, each part is a *FOURTH*.

A fourth is obtained by dividing a whole (1) by 4.

Question 14.

**H.O.T. Multi-Step** Whitney draws a rectangle divided into halves. Ben says that he can draw three lines on the rectangle to show eighths. Use drawings and write to explain how he could do this.

Answer:

Explanation:

Whitney draws a rectangle divided into halves.

If a whole is divided into four equal parts, each part is a *FOURTH*.

A fourth is obtained by dividing a whole (1) by 4.

Ben draw three lines on the rectangle to show eighths.

If a whole is divided into 8 equal parts, each part is an Eighths.

An Eighth is obtained by dividing a whole (1) by 8.

**Daily Assessment Task**

**Choose the correct answer.**

Question 15.

Representations Walter cooked a pie to share with his friend. Which pie is cut into halves?

Answer:

Explanation:

Walter pie represents the 2nd one from the above pies.

As, the is divided into 2 equal parts.

A half is obtained by dividing a whole (1) by 2.

Question 16.

Which shape is divided into eighths?

Answer:

Explanation:

If a whole is divided into 8 equal parts, each part is an Eighths.

An Eighth is obtained by dividing a whole (1) by 8.

3rd shape is equally divided into eights.

Question 17.

Which shape is divided into fourths?

Answer:

Explanation:

If a whole is divided into four equal parts, each part is a *FOURTH*.

A fourth is obtained by dividing a whole (1) by 4.

So, first shape is equally divided into fourths.

Question 18.

**TEXAS Test Prep** A piece of ribbon is cut into fourths. How many pieces of ribbon are there?

(A) 2

(B) 4

(C) 3

Answer:

Option(B)

Explanation:

If a whole ribbon is divided into four equal parts, each part is a *FOURTH*.

A fourth is obtained by dividing a whole (1) by 4.

So, there are 4 pieces of ribbon.

**TAKE HOME ACTIVITY** • Have your child explain how he or she solved one of the problems in this lesson.

Answer:

Yes, children can easily explain or solve the problems in this lesson by doing numbers of questions and activities.

### Texas Go Math Grade 2 Lesson 4.2 Homework and Practice Answer Key

**Draw to show equal parts.**

Question 1.

fourths

Answer:

Explanation:

If a whole is divided into four equal parts, each part is a *FOURTH*.

A fourth is obtained by dividing a whole (1) by 4.

Question 2.

eighths

Answer:

Explanation:

If a whole is divided into 8 equal parts, each part is an eighth.

An eighth is obtained by dividing a whole (1) by 8.

Question 3.

halves

Answer:

Explanation:

If a whole is divided into 2 equal parts, each part is a Half.

A Half is obtained by dividing a whole (1) by 2.

Question 4.

fourths

Answer:

Explanation:

If a whole is divided into four equal parts, each part is a *FOURTH*.

A fourth is obtained by dividing a whole (1) by 4.

**Problem Solving**

**Draw to solve.**

Question 5.

Jim wants to divide his paper into 2 equal parts. Draw to show how the paper could be divided.

Answer:

Explanation:

Jim wants to divide his paper into 2 equal parts.

So, he folded his paper as shown in the above picture.

If a whole is divided into 2 equal parts, each part is a Half.

A Half is obtained by dividing a whole (1) by 2.

Question 6.

**Multi-Step** Sue draws a rectangle divided into fourths. Kyle says that he can draw two lines on the rectangle to show eighths. Use drawings and write to explain how he could do this.

Answer:

Explanation:

Sue draws a rectangle divided into fourths.

If a whole is divided into four equal parts, each part is a *FOURTH*.

A fourth is obtained by dividing a whole (1) by 4.

Kyle says that he can draw two lines on the rectangle to show eighths.

If a whole is divided into 8 equal parts, each part is an eighth.

An eighth is obtained by dividing a whole (1) by 8.

**Lesson Check**

**Choose the correct answer.**

Question 7.

Chris draws to divide a rectangle into 2 equal parts. Which could be her drawing?

Answer:

Explanation:

The picture drawn by Chris is second one.

Because, when a rectangle is divided into 2 equal parts, each part is a Half.

A Half is obtained by dividing a whole (1) by 2.

Question 8.

A vegetable pizza is cut into four equal parts. What is the name of each part?

(A) a whole

(B) an eighth

(C) a fourth

Answer:

Option(C)

Explanation:

A vegetable pizza is cut into four equal parts, it is known as fourth.

If a whole is divided into 4 equal parts, each part is a Fourth.

A Fourth is obtained by dividing a whole (1) by 4.

Question 9.

A piece of rope is cut into eighths. How many pieces of rope are there?

(A) 8

(B) 2

(C) 6

Answer:

Option(A)

Explanation:

A piece of rope is cut into eighths, means whole is divided into 8 parts.

If a whole is divided into 8 equal parts, each part is an Eighth.

An Eighth is obtained by dividing a whole (1) by 4.

Question 10.

A tuna sandwich is cut into fourths. How many pieces are there?

(A) 2

(B) 4

(C) 3

Answer:

Option(B)

Explanation:

A tuna sandwich is cut into fourths, means divided into 4 equal parts.

If a whole is divided into 4 equal parts, each part is a Fourth.

A Fourth is obtained by dividing a whole (1) by 4.