Unit 19: Intro to Negative Numbers and Integers

Day 12 of 30

Learn patterns and rules for integer addition

3-5Mathematics

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Learning Objective

Students will be able to explore learn patterns and rules for integer addition.

Today's Lesson

In this lesson, we'll explore learn patterns and rules for integer addition. Mathematical thinking develops logical reasoning and problem-solving abilities.

Addition means putting groups together to find the total. When we see 3 + 2, we start with 3 objects and add 2 more. We can count them all to find the answer: 1, 2, 3... then 4, 5. So 3 + 2 = 5. The "+" symbol means "plus" or "add," and the "=" symbol means "equals" or "the same as."

As you work through today's material, pay attention to the examples and try to identify the patterns or strategies being used. This will help you apply these concepts to new problems.

Take notes on key points and make connections to what you've already learned in previous lessons.

Key Terms
Addition

The operation of combining quantities

Problem

A mathematical question requiring analysis and solution

Activities
Instructions
1. Review the example problems for learn patterns and rules for integer addition. 2. Identify the steps and strategies used. 3. Work through practice problems independently. 4. Compare solutions with a partner.
Materials Needed
  • Notebook
  • Calculator (if needed)
  • Graph paper
Practice Problems
1

Find the pattern: 3, 6, 9, 12, ___. What comes next?

Hint: Add 3 each time.
2

What is the rule? 5, 10, 15, 20...

Hint: Each number is 5 more than the one before.
3

Continue the pattern: 2, 4, 6, 8, ___, ___

Hint: Add 2 each time.

Teaching Tip

For this age group: Balance direct instruction with collaborative activities. Allow students to explain their thinking and make connections to prior knowledge when exploring learn patterns and rules for integer addition.

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