What does the author explain in “How Does Earth Move?”

In this lesson you will learn how to identify the main

purpose of a text by asking, “What is the author trying to

teach me?”

Let’s Review

• Non-fiction text

• How Earth moves

Core Lesson

Look back at the questions you have asked and answered as you read. 1

2 Look back at the illustrations and vocabulary words.

3 Ask, “What is the author trying to teach me?”

4 Use this information to write the author’s main purpose for writing the text.

Core Lesson

What are two ways Earth moves?

1. Earth rotates.

2. Earth revolves around the sun.

Core Lesson

When half of Earth is facing the sun, it is day. When half of Earth is facing away from the sun, it is night.

How does Earth have day?

It is day in Miami because Earth is facing the sun.

How does Earth have night? It is night in Miami because Earth is facing away from the sun.

Core Lesson

What does the diagram help me understand about Earth’s seasons?

It helps me understand that Earth has seasons because it is tilted as it revolves around the sun.

Core Lesson

Rotate – To spin around like a top.

Earth spins around like a top.

Revolve – To go all the way around something.

Earth goes all the way around the sun.

Core Lesson Hmm, what do these things have in common?

Core Lesson

Core Lesson

What is the author trying to teach me? Earth’s movement causes day

and night. It also causes the seasons.

Core Lesson

Look back at the questions you have asked and answered as you read. 1

2 Look back at the illustrations and vocabulary words.

3 Ask, “What is the author trying to teach me?”

4 Use this information to write the author’s main purpose for writing the text.

In this lesson you have learned how to identify the main

purpose of a text by asking, “What is the author trying to

teach me?”