Decimal Addition and Subtraction
Students will fluently add and subtract multi-digit decimals using the standard algorithm.
Key Questions
- Compare and contrast decimal addition/subtraction with whole number addition/subtraction.
- Justify the importance of aligning decimal points in addition and subtraction.
- Analyze how estimation can prevent errors in decimal calculations.
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.
unit plannerMath Unit
Plan a multi-week math unit with conceptual coherence: from building number sense and procedural fluency to applying skills in context and developing mathematical reasoning across a connected sequence of lessons.
rubricMath Rubric
Build a math rubric that assesses problem-solving, mathematical reasoning, and communication alongside procedural accuracy, giving students feedback on how they think, not just whether they got the right answer.
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