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Solving for the Unknown: Multiplication and Division

3rd Grade • Half Day Lesson Plan
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Lesson Plan Description

This half day lesson plan is broken down into 2 separate segments (30-60 minutes each) addressing Operations and Algebraic Thinking: Unknown Variables (3.OA.A4). These lessons include: key multiplication/division vocabulary, helpful student notes for reference, guided and independent practice of concepts, and a game to reinforce the concept of solving for the unknown in multiplication and division.

  • Segment 1: students will determine the unknown whole number in a multiplication or division equation, understand a symbol or letter can be used for the unknown in an equation, understand that both sides of an equation equal the same amount, regardless if the answer is found on the left or right side of the equals sign, understand the relationship between the 3 numbers in a multiplication and division problem (fact families).
  • Segment 2: students will play the game “Match It and Snatch It!” to practice determine the unknown whole number in a multiplication or division equation.

These lessons can be taught over the span of a half day or you can use the lessons independently, broken up over several days.