Adding Two-Digit Numbers (No Regrouping)
Students add two two-digit numbers without regrouping, focusing on adding tens to tens and ones to ones.
Key Questions
- Explain why adding the ones first is a helpful strategy.
- Compare adding two-digit numbers to adding one-digit numbers.
- Design a step-by-step process for adding two-digit numbers without regrouping.
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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