Unit 20: Coordinate Plane and Graphing

Day 3 of 30

Locate the origin

3-5Mathematics

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Learning Objective

Students will be able to locate the origin.

Today's Lesson

In this lesson, we'll explore how to locate the origin. Mathematical thinking develops logical reasoning and problem-solving abilities.

The origin is the point where the x-axis and y-axis intersect on the coordinate plane. Its coordinates are (0, 0). The origin is the starting point—all other points are measured from here. Moving right or up increases coordinates; left or down decreases them. The origin is the center of the coordinate system and helps you navigate the plane!

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
Problem

A mathematical question requiring analysis and solution

Solution

The result obtained by solving a problem

Activities
Instructions
1. Review the example problems for locate the origin. 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

Practice Problem 1: Apply what you learned today.

Hint: Review the examples from the lesson.
2

Practice Problem 2: Try a similar problem on your own.

Hint: Use the strategies you learned.
3

Challenge: Can you create your own problem like the ones we practiced?

Hint: Think about the pattern in the problems.

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 locate the origin.

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