1. Vocabulary

2. Rational Number Most numbers are rational. It is a number whose decimal expansion eventually terminates or repeats. – What does it mean to terminate?

3. Irrational Number

4. Timed Pair Share Can a number be rational and irrational? Why or why not

5. Square Root Just like multiplication and division are opposites, squaring a number and taking the square root of a number are opposites

7. Cube Root A square root is the opposite of a number squared, a cube root is the opposite of a number ____________

9. Checking for understanding. Are the following rational or irrational? Justify your answer. 3.75.62626262….. 9.213479…….. -9.8

10. Solve the square root and prove why it is correct

11. Solve the cube root and prove why it is correct

12. If you calculate the square root and the cube root of the same number, which solution will be bigger? Is this always true? How do you know? – Numbers to consider: 1 and 64