Subtracting Numbers within 20
1Math39 min
Learning Objective
I can subtract numbers within 20 using objects or drawings.
Lesson Flow
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Guided Notes
Key concepts students will learn:
- •
When you subtract, you end up with less than what you started with.
- •
4 - 2 = 2, so four buttons minus two buttons is two buttons.
- •
5 - 4 = 1, so five bananas minus four bananas is one banana.
Practice
6 questions • Multiple choice & Short answer
Exit Ticket
“Callie has 4 apples. She gives 1 apple to Pete. How many apples does Callie have now?”
Teacher Guide
Get the complete package:
- Answer keys for all questions
- Differentiation strategies
- Extension activities
- Printable student handouts
