1. Discuss with a partner and record your thoughts.
Which set is larger: Integers or Whole Numbers? Why?
What is the difference between Whole Numbers and Natural Numbers?

2. Square Roots and Irrational Numbers
Mrs. Spanier
8th Grade Math

3. Square Roots
Perfect square = product of a number mutiplied by itself. (4 • 4 = 16)
The square root of 16 is 4...
… and -4! (-4 • -4 = 16)

4. Solve: Find the square roots. 8 or -8 -6 (negative indicates only -6)

5. Solve: Estimate the square roots (round to 1 decimal place).
About ±6.3
About ±12.2

6. Rational Numbers Can be made into a fraction a/b, where b ≠ 0.
Repeating OR terminating decimal.
2/3 …

7. Irrational Numbers Cannot be made into a fraction a/b, where b ≠ 0.
Repeating AND non-terminating decimal. π …

8. The Number System

9. Classify the Following:
Irrational …
Rational (equals -⅓)

10. Classify the Following:…
Irrational (no end, no repetition) 1⅔
Rational (can be 5/3)
Rational (equals 10 or 10/1)

11. The End