Adding and Subtracting Decimals
Students will fluently add and subtract decimals to hundredths using concrete models or drawings and strategies based on place value.
Key Questions
- Justify the alignment of decimal points when adding or subtracting decimals.
- Construct a visual model to demonstrate decimal addition or subtraction.
- Evaluate the efficiency of different strategies for decimal operations.
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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