Objective

By the end of this lesson, you will be able to apply algebraic concepts to solve real-life problems related to video games and small motor repairs.

Materials and Prep

• Paper and pencil
• Calculator (optional)
• Basic understanding of algebraic operations (addition, subtraction, multiplication, division)

Activities

1. Activity 1: Video Game Pricing

   Research the prices of different video games you are interested in. Write down the prices and create algebraic expressions to represent the total cost of buying multiple copies of each game. Solve the expressions to find the total cost for different scenarios.

2. Activity 2: Motor Repair Costs

   Think about a small motor you would like to repair. Research the cost of different parts needed for the repair. Create algebraic expressions to calculate the total cost of repairing the motor based on the number of parts needed. Solve the expressions for different scenarios.

Ninth Grade Talking Points

• "Algebra is a branch of mathematics that helps us solve problems using letters and symbols."
• "In the activity about video game pricing, we will use algebraic expressions to represent the cost of buying multiple copies of a game. This will help us calculate the total cost for different scenarios."
• "When we repair small motors, we often need to buy different parts. In the activity about motor repair costs, we will use algebraic expressions to calculate the total cost of repairing a motor based on the number of parts needed."
• "By solving these algebraic expressions, we can find out how much money we would need to spend for different situations related to video games and motor repairs."
• "Remember, algebra is a powerful tool that can be applied in many real-life situations. It helps us solve problems and make informed decisions."