Lesson Plan:

# Subtraction Masters

1.8 based on 11 ratings
August 31, 2015
Standards
August 31, 2015

## Learning Objectives

Students will be able to solve subtraction problems with two-digit numbers.

## Lesson

### Introduction (10 minutes)

• Tell students that today you are going to teach them how to subtract two-digit numbers.
• Think of a short word problem that uses subtraction with two-digit numbers. For example: 36 children are out on the playground. A teacher comes out and calls 17 of them back in. How many children are left on the playground?
• Solve this problem on the board by lining up the place values and using regrouping to break up the digit in the tens place to create enough ones to subtract.

### Explicit Instruction/Teacher Modeling (15 minutes)

• Display the Subtraction with Borrowing: Honeybees! worksheet and work through the problems, showing your students every step as you go.
• Answer any student questions that come up while you're working.

### Guided Practice/Interactive Modeling (15 minutes)

• Pass out the Solve a Subtraction Lineup Challenge worksheet.
• Go through the first couple of problems if you feel your class needs the extra support.

### Independent Working Time (20 minutes)

• Have students complete the worksheet independently.
• Walk around the classroom as they work to answer questions and assist as needed.

## Extend

### Differentiation

• Enrichment: Give advanced students multiple step problems, such as Sweet Treat Math Word Problems worksheet, to complete.
• Support: Give struggling students one-on-one support or pair them with a peer mentor. If students need extra practice with their subtraction facts, have them pair up and practice with the Subtraction War activity.

## Review

### Assessment (15 minutes)

• Check for correctness of the given worksheet.
• Pass out an index card and give students one or two problems on the board for them to solve.
• Collect the index cards as an exit ticket.

### Review and Closing (15 minutes)

• Have students pair-and-share something they learned today and something they still need help with.
• Have students share partner responses with the class.
• Answer and questions students may have.