### Lesson plan

# Break It Down

#### Learning Objectives

Students will be able to subtract three-digit numbers using place value blocks.

The adjustment to the whole group lesson is a modification to differentiate for children who are English learners.

#### Introduction

*(5 minutes)*

- Show students the place value blocks.
- Say, “These blocks show 100, 10, and 1. We can use these blocks to represent how many hundreds, tens, and ones we have.”

#### Explicit Instruction/Teacher modeling

*(10 minutes)*

- Write the number 394 on the board.
- Say, “If you want to use place value blocks to represent this number, you would use three hundreds, nine tens, and four ones.”
- Now write
**394 – 293 =**On the board. Say, “Let’s subtract 293 from 394. That means we have to take away one hundred, nine tens, and three ones.”**____** - Show how to subtract 293 from 394 using place value blocks.
- Now write
**394 – 293 = 101**On the board.

#### Guided practise

*(10 minutes)*

- Hand out place value blocks to the students.
- Write the number 539 on the board. Have students work in pairs to represent 539 with place value blocks.
- Now tell students to subtract 323 from 539.
- Have students share their answers with the class.

#### Independent working time

*(15 minutes)*

- Pass out the Place Value Blocks worksheet.
- Have students work independently to solve the problems.

#### Differentiation

**Enrichment:**Have students work with place value blocks to create and solve additional three-digit subtraction problems.

**Support:**Have students work with real place value blocks when solving the problems on the worksheet.

#### Assessment

*(5 minutes)*

- Assess student understanding by observing how they solve the problems on the worksheet.
- Have students share their answers with the same partners they worked with during the guided practise section of the lesson and listen in to assess understanding.

#### Review and closing

*(5 minutes)*

- Have students share their strategies for solving the problems on the worksheet.