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Objective

By the end of this lesson, you will be able to understand the concept of change in mathematics and apply it to various scenarios.

Materials and Prep

  • Paper
  • Pencil
  • Calculator (optional)
  • Basic understanding of addition, subtraction, multiplication, and division

Activities

  1. Change Scenarios: Create different scenarios involving change, such as buying items at a store and calculating the change received, or tracking changes in temperature throughout the day.

  2. Change Puzzles: Solve math puzzles where you need to figure out the change from given amounts. For example, if you have $20 and you buy an item for $8.75, how much change will you receive?

  3. Change Graphs: Graph the change in something over time, like the growth of a plant or the balance in a savings account. Interpret the graphs to understand the concept of change visually.

Talking Points

  • "Change in mathematics refers to the difference between two values or the rate at which a value is increasing or decreasing."
  • "Understanding change is essential in real-life situations like managing finances, analyzing trends, and making predictions based on data."
  • "When calculating change, you often use basic arithmetic operations such as addition and subtraction to find the difference between two amounts."
  • "Graphs can visually represent change over time, showing how values increase or decrease. This helps in analyzing patterns and making informed decisions."