7th Grade Adding Integers Lesson Plan Example (Math)

Topic: adding integers

Objectives & Outcomes

• Students will be able to use a number line to add integers.

Materials

• A number line
• Arrays of numbers representing integers (can be created with arrays Maker or by creating arrays on a whiteboard or paper)
• Pencils and paper for students to make their own practice problems

Warm-up

• Review what an integer is and what integers look like (e.g. -5, -12, -23, etc.)

Direct Instruction

• Introduce the concept of the number line and how it represents numbers.
• Show students how to add integers using the number line.
• Demonstrate how to start at the end points of the two integers being added and then use the number line to find the answer in between.
• Show examples of adding integers with a small number of digits (e.g. -13 + 4 = -9).
• Then, show examples with a larger number of digits (e.g. -23 + 12 = -11).

Guided Practice

• Have students work in pairs to complete a series of adding integer problems on their own number lines.
• Provide assistance as needed and check for understanding.

Independent Practice

• Have students complete a number line addition challenge, in which they must use their number lines to find the sum of multiple integers in a given range (e.g. -7 to -2).
• Encourage students to use their spatial reasoning skills and concrete experiences with the number line to find the answers.

Closure

• Review the steps for adding integers on a number line, and ask students to share any questions or challenges they had with the activity. Understanding How to Add Integers on a Number Line
• Integers are numbers without any fractions or decimals.
• Adding integers means joining two numbers and finding the result.
• To add two integers on a number line, we must use the opposite directions (i.e. if the first number is to the left, the second number must be to the right).
• The sum of two integers is always between 0 and the maximum integer.

Adding Integers Worksheet

• Print out the worksheet and have students fill in the missing integers.
• After students have completed the worksheet, have them share their answers with the class.
• Encourage students to discuss any challenges they had with the activity.