Subtracting within 1000 using Models
Students use concrete models or drawings and strategies based on place value to subtract within 1000, including decomposing tens and hundreds.
Key Questions
- Compare the process of regrouping in addition to decomposing in subtraction.
- Construct a step-by-step explanation for subtracting a three-digit number from another with regrouping.
- Evaluate the effectiveness of using base-ten blocks to model subtraction with borrowing.
Common Core State Standards
Suggested Methodologies
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Planning templates for Mathematics
5E Model
The 5E Model structures lessons through five phases (Engage, Explore, Explain, Elaborate, and Evaluate), guiding students from curiosity to deep understanding through inquiry-based learning.
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