T3
Evaluate expressions at specific values of their variables *
Lesson 2
Discuss (2 min)
After completing the Check-your-understanding questions, which were important for everyone to do?
Pick one problem that you did and show your work to you neighbor.
Entry Ticket (5 min)
On the blank side, write: First name, last name, U7T3
Allowance: You get $18 per week minus $2 for every chore missed (c). Evaluate 18 - 2c for c = 3.
Direct Instruction Notes
1. How to read (smaller) exponents:
5² is read "five to the power of two" OR "five squared"
6³ is read "six to the power of three" OR "six cubed"
2. Key vocabulary reminder:
Sum: answer to an addition problem
Difference: answer to a subtraction problem
Product: answer to a multiplication problem