Multi-Digit Decimal Operations: Multiplication & Division
Applying multiplication and division of multi-digit decimals to solve financial and measurement problems.
Key Questions
- Explain how the placement of the decimal point changes our understanding of a number's magnitude in multiplication.
- Evaluate when an estimated answer is more useful than an exact decimal calculation.
- Analyze how rounding errors compound when performing multiple decimal operations.
Ontario Curriculum Expectations
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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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.
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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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