Unit 6.6, Lesson 2: Five Equations Name(s) _________________________________ Activity 1: Equations and Tape Diagrams Here are five equations. A. �� + 5 = 20 B. �� = 20 + 5 C. 5 · 20 = �� D. 5�� = 20 E. 20�� = 5 1. Select two equations that have something in common. Equation: ____________ Equation: ____________ How are these equations similar? How are they different? Match each tape diagram with one of the equations above. 2. Equation: ____________ 5. Select an equation that did not match a tape diagram. Equation: ____________ Draw a tape diagram for this equation. 3. Equation: ____________ 4. Equation: ____________
Unit 6.6, Lesson 2: Five Equations Name(s) _________________________________ Activity 2: Which Equation? For each situation, choose the equation that best represents it. Then, determine the solution and explain what the solution means in the situation. A. �� + 5 = 20 B. �� = 20 + 5 C. 5 · 20 = �� D. 5�� = 20 E. 20�� = 5 1. Mohamed walked 20 blocks to school each day for 5 days. He walked �� blocks total. Equation Solution Meaning of Solution 2. Rebecca has $20 to spend on day passes to ride the subway. Each day pass costs $5. She can buy �� day passes total. Equation Solution Meaning of Solution 3. Kwasi rides the bus for a total of 20 stops to get to work. After �� stops, he has 5 stops left. Equation Solution Meaning of Solution 4. Select an equation that did not match a situation. Write your own situation that could be represented by the equation you selected.
Equation Solution Meaning of Solution Unit 6.6, Lesson 2: Five Equations Name(s) _________________________________ Lesson Synthesis How can you tell which equation represents a situation? Use the example if it helps you with your thinking. Cool-Down Kwasi rides the subway 20 stops to get to work. After �� stops, he has 5 stops left. ▢ �� + 5 = 20 ▢ 5�� = 20 Yasmine is biking 5 miles to her friend's house. After she biked 2 miles, she had �� miles left to go. 1. Which equation matches this situation?
A. 2 + �� = 5 B. 2�� = 5 C. �� = 5 + 2 D. 5 · 2 = �� 2. In this situation, what is the meaning of the solution to the equation?