Unit 8: Ratios, Rates & Proportions


Topic
and included subtopics
Standards
Time Frame

· Show relationships between two quantities (e.g. distance & time)

· Solve Multi-step rate and direct variation problems

· Dimensional Analysis: Convert and compare measures (time, area, volume, distance)

AF 4.2 Solve multi-step problems involving rate, average speed, distance, and time or a direct variation. MG 1.3 Use measures expressed as rates (e.g., speed, density) and measures expressed as products (e.g., person-days) to solve problems; check the units of the solutions; and use dimensional analysis to check the reasonableness of the answer. AF 3.4, MG 1.1, 2.4
3 weeks

Student Friendly Version


Power Point Lessons

SMART Notebook Lessons

Lessons


Games

Here are the links to a review activity on Distributive Property and a game to practice Order of Operations.s

external image Screen-shot-2012-02-02-at-11.39.49-AM-2al7eb4.pngDirt Bike Proportions! Play by yourself or compete against other students over the internet. (Remember, first names only!) Be sure to record your time in the comments section. Let's see who are our high scorers!

external image Screen-shot-2012-02-02-at-11.44.15-AM-1jcbb8t.pngRatio Blaster! You've got to be quick to prevent the aliens from invading. My rate of accuracy was 88% and my rate of speed was 16 problems per minute. can you beat me?


Tutorials

Video & Interactive Activity - Math 6 Spy Guys


Challenge Problems

Figure This: Can You Run as Fast as a Car?
Does Polygon Need a Jacket (Converting temperatures)


Collaborative Idea
1.Students write several questions and request responses worldwide. Students than calculate the responses and determine unit rate in each county. Example: cost of a movie, 1 gal. of gas, a gallon of milk, - each group could choose a country to report back on with all of the conversions and comparisons. Then each group could report on the relative cost of particular items. Create a Google Form for people to report on. Send out requests via Twitter.