Representing Lengths on a Number Line
Students represent whole numbers as lengths from 0 on a number line diagram and represent whole-number sums and differences within 100.
Key Questions
- How does a number line visually represent the concept of length?
- Design a number line model to show the sum of two lengths.
- Analyze how a number line can be used to solve subtraction problems involving length.
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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