In this lesson, students will add three-digit numbers using expanded form addition and standard algorithm addition. They'll explain their answers and highlight the steps for each of the strategies.

Use this lesson to guide your ELs towards identifying and discussing the problem and solution in a story. Teach this lesson as a stand-alone lesson or as support to the lesson Traditional Literature: Story Mapping.

Get your students comfortable with math conversations with this lesson on multiplying fractions by a whole number. It can be taught on its own or used as support for the lesson Fractions of a Whole.