Modeling Decimal Multiplication

Name:

Date:

🎯 Learning Goals

I can... use base ten blocks to model multiplying a decimal by a whole number.

I can... connect my visual model to the traditional multiplication algorithm.

Success Criteria:

✓ I can represent decimals using base ten blocks correctly
✓ I can show repeated addition or groups using my model
✓ I can explain how my model connects to the standard algorithm

📊 Part 1: Modeling with Base Ten Blocks

1. Model 3 × 1.4 using base ten blocks. Draw your model below:

2. What does your model show? Complete the sentence:

My model shows _____ groups of _____ ones and _____ tenths = _____

3. Model 2 × 2.3 using base ten blocks. Draw your model:

4. Write the multiplication sentence that matches your model:

_____ × _____ = _____

5. Model 4 × 0.6 using base ten blocks. Draw your model:

🔢 Part 2: Connecting Models to Traditional Algorithm

6. Look at your model for 3 × 1.4. Show how to solve this using the traditional algorithm:

7. Explain how your base ten block model connects to the traditional algorithm:

8. Challenge Problem: Model and solve 5 × 1.8

Model:

Traditional Algorithm:

9. Reflection: Which method helps you understand decimal multiplication better - the model or the algorithm? Explain why.

Modeling Decimal Multiplication

Modeling Decimal Multiplication

🎯 Learning Goals

Success Criteria:

📊 Part 1: Modeling with Base Ten Blocks

🔢 Part 2: Connecting Models to Traditional Algorithm

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