OL STAAR Review: Proportional Reasoning

• Write the given rate as a fraction

• Fill in the 3rd number - make sure to match up units!!

• Solve the proportion

• If it's multiple choice, you can estimate

• Set up the rate as a fraction

• Match up the units to fill in 3rd number

• Look for a relationship: There is one up-and-down (divide by 4)

• 288 divided by 4 = 72!

• Make sure your fractions seem reasonable!

• Set up the rate as a fraction

• Match up the units

• Guess and check to find a relationship (or estimate!)

• Relationship is x 15, side-to-side

• 5 x 15 = 75

• Check fractions for reasonableness... both are bigger on top!

Don't forget about

percent proportions!

• Change = $50, NOT 50%! Be careful!

• Original = $250

• Set up proportion

• Relationship up-and-down = divide by 5

• 100 divided by 5 = 20%

Now, join the class Blooket game

to practice what you learned!