SME
Grade 6 Math
Ratios & Proportions
Understand and use ratios
Main lesson
Solve ratio problems with tape diagrams
Use this for “Red to blue beads is 4 to 3, with 84 beads in all. How many red? How many more red than blue?”
Ratios with three parts
Use this for “A ratio of 3:4:5 with 96 people in all. How many in each part?”
Ratio language
Use this for “For every 2 cats there are 3 dogs”: the ratio of cats to dogs.
Equivalent ratios
Use this for “Is 4:6 equivalent to 2:3?”
Unit rates
Main lesson
Compare unit prices
Use this for “Which is the better buy?”: compare the price of one item.
Constant speed
Use this for “6 miles in 2 hours. How long for 15 miles?” at the same speed.
Convert units using rates
Use this for “How many quarts is 200 fluid ounces?” with 32 fluid ounces in a quart.