OER Commons
Oer Commons: Gallery Problems Exercise
Students who have a clear understanding of the previous lessons can work on gallery problems of their choosing. This can be used as a good review or assessment.
Illustrative Mathematics
Illustrative Mathematics: A sse.b.4: Triangle Series
The purpose of this task is to emphasize the adjective "geometric" in the "geometric" series, namely, that the algebraic notion of a common ratio between terms corresponds to the geometric notion of a repeated similarity transformation....
Education Place
Houghton Mifflin: Eduplace: Extra Practice Quiz Percent as a Ratio
Find the percent using a ratio and find a ratio using a percent. Read the interactive quiz rules and then click on the "Begin" ticket. If you answer incorrectly you get one more chance to try again then you are told the correct answer....
OER Commons
Oer Commons: Scale
Seventh graders will explore scale and use it to find measurements in scale drawings.
AAA Math
Aaa Math: How to Determine a Ratio
This site explains the meaning of ratio and how to determine a ratio. Gives practice and games to practice this skill.
Illustrative Mathematics
Illustrative Mathematics: 7.rp Two School Dance
The purpose of this task is to see how well students students understand and reason with ratios. This task was adapted from problem #14 on the 2011 American Mathematics Competition (AMC) 8 Test. Aligns with 7.RP.A.3. The site provides a...
Illustrative Mathematics
Illustrative Mathematics: 6.rp Voting for Three, Variation 3
Students use simple ratios to answer the following question: John, Marie, and Will all ran for 6th grade class president. The ratio of votes for John to votes for Will was two to one. Marie got exactly the average number of votes for the...
Illustrative Mathematics
Illustrative Mathematics: 6.rp Voting for Three, Variation 2
John, Marie, and Will all ran for 6th grade class president. Of the 36 students voting, the ratio of votes for John to votes for Will was two to one. Marie got exactly the average number of votes for the three of them. How many more...
Illustrative Mathematics
Illustrative Mathematics: 6.rp the Escalator, Assessment Variation
Students demonstrate their understanding of the concept of ratio and unit rate association with a ratio.
Illustrative Mathematics
Illustrative Mathematics: 6.rp Mixing Concrete
Students use ratio and rate to answer this performance task: A mixture of concrete is made up of sand and cement in a ratio of 5 : 3. How many cubic feet of each are needed to make 160 cubic feet of concrete mix?
Illustrative Mathematics
Illustrative Mathematics: 6.rp Jim and Jesse's Money
In this real-world context, 6th graders are given the ratio of Jim's money to Jesse's and the amounts they have spent so far on a road trip, and they must calculate what each person had at the start of the trip. Aligns with 6.RP.A.3.
Illustrative Mathematics
Illustrative Mathematics: 6.rp Games at Recess
Students use ratios to answer three questions based on a specific set of data in this performance task.
Illustrative Mathematics
Illustrative Mathematics: 6.rp Voting for Three, Variation 1
Students use ratio relationships between two quantities to answer three questions in this diagram-based performance task.
Illustrative Mathematics
Illustrative Mathematics: 6.rp Voting for Two, Variation 4
Students use ratio reasoning to solve the following performance task: John and Will ran for 6th grade class president. John got two votes for every vote Will got. It was necessary to get more than half the votes to get elected. What...
Illustrative Mathematics
Illustrative Mathematics: 6.rp Voting for Two, Variation 3
Students use ratios to solve the following performance task: John and Will ran for 6th grade class president. There were 36 students voting. John got two votes for every vote Will got. It was necessary to get more than half the votes to...
Illustrative Mathematics
Illustrative Mathematics: 6.rp Running at a Constant Speed
Students use ratio and rate reasoning to answer four questions in this performance task.
Illustrative Mathematics
Illustrative Mathematics: 6.rp Security Camera
Students use ratio and rate reasoning to answer four questions in this diagram-based performance task.
Illustrative Mathematics
Illustrative Mathematics: 6.rp Shirt Sale
Students use ratio and rate reasoning to solve the following performance task: Selina bought a shirt on sale that was 20% less than the original price. The original price was $5 more than the sale price. What was the original price?...
Illustrative Mathematics
Illustrative Mathematics: 6.rp Price Per Pound and Pounds Per Dollar
Young scholars use ratios to answer four questions about rate and pounds in this performance task.
Illustrative Mathematics
Illustrative Mathematics: 6.rp Hippos Love Pumpkins
Students use ratios to answer four questions about rates in situations involving unusual units in this performance task.
Illustrative Mathematics
Illustrative Mathematics: 6.rp Riding at a Constant Speed, Assessment Variation
Learners use ratios to answer four questions about rate and distance in this performance task.
Illustrative Mathematics
Illustrative Mathematics: 6.rp Friends Meeting on Bicycles
Students use ratio and rate to answer five questions in this real-world math performance task.
Illustrative Mathematics
Illustrative Mathematics: 6.rp Dana's House
Students use ratio and rate to solve this real-world math performance task: The lot that Dana is buying for her new one story house is 35 yards by 50 yards. Dana's house plans show that her house will cover 1,600 square feet of land....
Illustrative Mathematics
Illustrative Mathematics: 6.rp Mangos for Sale
Students use ratios and unit rates to answer this performance task.