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1. solving direct variation to write and solve direct variation.
2. Rate of change to calculate rate of change
3. slope intercept to find x intercept, y intercept and slope
4. representing to calculating

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1. 7th grade y=mx+b and in 8th grade y=mx+b where b does not =0
2. 7th grade constant of proportionality becomes direct variation in 8th grade
3. 7th grade calls it rate of change, 8th grade calls it slope

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1. Additive and multiplicative rules/identifying the pattern to constant rates of change
2.

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Vocabulary from recognize and generate to compare and represent
Adding real world problems
Describing in words to describing to Algebraic rule