In this lesson, you learned how to:
- Tell which quantities in a situation can vary and which ones cannot.
- Explain the meaning of the term “constraint.”
- Use letters and numbers to write expressions representing the quantities in a situation.
Here are the activities that helped you reach those goals:
- 1.1.1: Understanding Value
- In this activity, you wrote equations to solve problems about a meal. The big thing you learned is that an equation is a statement that an expression has the same value as another expression. An equation can have letters, numbers, or a mix of letters and numbers.
- 1.1.2: Creating Expressions to Estimate Cost, Part 1
- In this activity, you learned how expressions could represent the quantities in a situation like planning a pizza party. You also saw how expressions could change if quantities changed.
- 1.1.2: Self Check
- 1.1.2: Additional Resources
- 1.1.3: Understanding Constraints
- In this activity, you continued working with the pizza party and learned that a constraint is something that limits what is possible or reasonable in a situation.
- 1.1.3: Self Check
- 1.1.3: Additional Resources
- 1.1.4: Creating Expressions to Estimate Cost, Part 2
- In this activity, you wrote expressions and examined constraints for the cost of an ice cream party for the ninth-grade class.
After these activities, you completed the following practice:
- 1.1.5: Practice
Checking In
On a scale of 1 to 5, how confident do you feel about the learning goals of this lesson?
Nice reflection! You learn more when you take the time to reflect on your thinking.