Revisiting+Numbers

Overview Section A: The students develop their understanding of ratios and rates by examining the speed of various animals and machines. They also extend their work from the 7th grade unit "Facts and Factors" to examine exponents and scientifc notation.

Section B: This section focuses on understanding the number system through working with positve and negative powers of ten.

Section C: Students compare a variety of strategies for the multiplication and division of whole numbers and apply these strategies to probelms involving fractions and mixed numbers.

Section D: Students investigate various properties such as division by zero, inverse relationship of multiplication and division, rules for multiplying and dividing integers, and the communitive, associative, and distributive properties.

Section E: Students explore relationships among integers, rational numbers, and irrational numbers. They investigate the structure of the real number system.

Links: [|Interactive activities] using models [|Lattice]multiplication (history/examples/practice) Ratio Table game for practice Interactive [|ratio table] [|tic tac toe]with multiplication (negative numbers included) Fraction Multiplication [|Model]