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Lesson Plan Generator
Grade Level
Subject
Topic
Adding Fractions with Unlike Denominators
Maplewood Elementary School
3rd Grade Math
45 minutes
Learning Objectives
• Students will find a common denominator for two fractions
• Students will add fractions using visual models and number lines
Warm-Up (5 min)
Display fraction strips on the board. Ask students to find two fractions equivalent to 1/2. Cold call 2-3 students to share their reasoning.
Direct Instruction (15 min)
Model finding the LCD using fraction bars. Walk through 1/3 + 1/4 step by step. Show how to convert both to twelfths, then add the numerators.
Guided Practice (10 min)
Students work in pairs on 3 problems using fraction manipulatives. Circulate and check for understanding before the transition.
Closure (5 min)
Exit ticket: Solve 2/5 + 1/3 and explain your strategy in 2-3 sentences.
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Maple Grove Elementary, Portland OR
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TeachStack Pro5th Grade Science
Horizon Academy, Phoenix AZ
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