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# Lesson Plan Template

• #### Vocabulary

• Subtraction: The process of finding the difference by taking away one number from another.
• Manipulatives: Objects used to help visualize and understand mathematical concepts.

### Materials and Preparation

• Connecting cubes
• Whiteboard and markers
• TeachTastic Worksheet Pack

### Learning Objectives

• Students will solve subtraction problems within 10 using manipulatives.
• Students will understand the concept of subtraction as taking away.
• Students will demonstrate the ability to record subtraction problems and solutions accurately.

### Introduction

Begin by discussing the concept of subtraction using everyday contexts, such as if someone has 5 apples and eats 1, how many are left? Demonstrate this scenario using 5 connecting cubes, removing 1 to show the result. Explain that today, they will use cubes to solve subtraction problems and understand how many are left after taking some away.

### Explicit Instruction/Teacher modeling

Describe the process of using manipulatives to solve subtraction problems:

2. Remove the necessary number of cubes as described by the subtraction problem.
3. Count the cubes that remain.
4. Record the subtraction equation based on the action performed.

### Related Products

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### Guided Practice

Demonstrate a subtraction problem: "Here are 5 cubes. Take away 1 cube." Model the steps:

• Display 5 cubes.
• Remove 1 cube.
• Show the 4 remaining cubes.
• Write 5−1=4 on the board. Guide students through additional problems in pairs, using cubes and documenting their steps and solutions.

### Independent Practice

Distribute a worksheet with subtraction problems. Students should use their cubes to physically model each problem, remove cubes, count what remains, and write the equation.

## Support

• Offer visual aids like number lines.
• Provide targeted guidance in smaller groups for students who need more help.

## Extension

• Encourage students to create their own subtraction problems.
• Introduce subtraction in different contexts, like story problems.

### Assessment

Use the Assessment Worksheet from the Worksheet Pack to evaluate student progress. Check that students can accurately model subtraction problems with manipulatives and correctly record their equations.

### Review and closing

Review key points and solve a couple of problems as a class. Discuss any mistakes and ensure understanding of subtraction concepts.

### Misconceptions

1. Subtraction involves removing objects, but students must also understand the need to count the remaining objects.
2. The order of numbers in a subtraction equation represents the starting amount and the amount removed, which might be reversed by some students.
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