Count Backwards by 2s (193)

Lesson Plan

Patterns in Counting Backwards

Standards

Printable Aids

Teaching Notes

Introduce counting backwards by 2s as a repeated subtraction pattern. Use a number line or physical objects to demonstrate the concept, emphasizing the 'every other number' pattern. This skill builds number sense and prepares students for subtraction.

Vocabulary

Backwards counting: Counting down from a number.

Subtract: Take away a number.

Common Mistakes

• Skipping numbers incorrectly (e.g., counting by 1s or 3s instead of 2s)
• Stopping prematurely (e.g., at 2 instead of 0)
• Counting forward instead of backward

Differentiation

Discussion Questions

• What pattern do you notice when counting backwards by 2s?
• How is counting backwards by 2s similar to counting forwards by 2s?
• Why is it important to learn how to count backwards?

Extension Activities

• Count backwards by 2s to 0.
• Use a number line to jump back.
• Find even numbers.

Parent Tip

Count backwards from 20 by 2s, clapping for each number.

Skill Cluster

Number Sense & Operations

Grade Level

1-2

Skills Practiced

Prerequisites

• Counting Backwards by 1
• Skip Counting Forwards
• Counting to 20
• Number recognition 0-20
• Counting forward by 2s to 20

Next Steps

• Subtraction
• Mental Math Strategies
• Counting backwards by 2s from larger numbers
• Counting backwards by 5s and 10s
• Introduction to subtraction within 20