8th grade math

August 20-25

We have begun with the Real Number System. Real numbers can either be rational or irrational. Rational numbers are numbers that can be written as ratios. These include decimals that terminate or repeat. Irrational numbers are numbers such as pi or square roots of non perfect squares. These decimals do not terminate or repeat.
Rational numbers can be further broken down into other categories. Natural numbers are the counting numbers, 1, 2, 3, 4, 5, ... Whole numbers are the counting numbers and zero, 0, 1, 2, 3, 4, ... Integers are the whole numbers and their opposites, ..., -3, -2, -1, 0, 1, 2, 3, ... Here is a Khan Academy video that can help with review.

Next we began looking at converting fractions to decimals and decimals to fractions. Most of this was review, but we learned what how to convert repeating decimals to fractions and found an interesting pattern. Here is a Khan Academy video that can help with review of converting repeating decimals.