This formative is by Kelly Quinn! Below, she describes how each 6th grade Common Core standard is assessed in it so you can see how it fits into what you are already teaching!
CCSS.MATH.CONTENT.6.RP.A.3.C Find a percent of a quantity as a rate per 100 (e.g., 30% of a quantity means 30/100 times the quantity); solve problems involving finding the whole, given a part and the percent.
Students are given a table, a fraction value, a percent, and the whole. They are asked to figure out how many pieces of candy represent the fraction, percent, and the remaining amount. Students are also asked to show knowledge of convsersion between fraction, decimals, and percents.
Samantha's family went Trick or Treating, they got 40 pieces of candy. Luckily, Tiny Tim (Samantha's son) is only 1 and doesn't eat a lot of candy. The family decided to share the candy the following way:
3/5 for the adults
10% for Tiny Tim
Rest of the candy will get saved.
Figure out how many pieces of candy will go to the adults, Tiny Tim, and how many pieces will get saved.
How many pieces of candy will get saved?
Using the answer from #2 (the amount of pieces of candy that will get saved). Write the answer as a fraction, out of the total 40 pieces, the equivalent decimal, and the equivalent percent.