Doubling Strategy for Multiplication

Emily·

Math

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At a Glance

Grade Level9th Grade

SubjectMath

Original Prompt

Design a worksheet on multiplication by 4, focusing on the doubling strategy where students learn to double a number twice (n×2×2) or add a number to itself after doubling (n×2 + n×2). Include problems from 4×1 through 4×12 that progressively build understanding of this strategy, with clear worked examples showing the mental steps involved. Incorporate visual models that highlight the relationship between doubling and multiplying by 4 to develop multiplicative reasoning. Ensure space for student...

This resource focuses on a specific strategy for multiplying numbers by 4 using the doubling method. It introduces two main strategies: first, doubling a number twice (n x 2 x 2), and second, doubling a number and then adding that result to itself (n x 2 + n x 2). The document provides step-by-step examples to demonstrate these strategies with various numbers, encouraging students to understand and apply the doubling technique. Engaging real-world scenarios and guided practice help reinforce the concept. It also includes opportunities for independent practice, encouraging students to spot patterns in their answers and reflect on the strategy's effectiveness.