A rich task where students will perform a task and count how many times it can be done in an allotted time. They will then use this to discover and practice how to find unit rates from complex fractions and even take it to the next level of feeding into understanding where slope comes from if desired.

### Math Mystery Crime Case

7.RP.1,2 Students will love to play the role of the detective in this lesson as they use their rates/slope/linear equations skills to solve the mystery of who the thief is.

### Describing The Speed Of A Car

In this lesson students will see why math is important in helping us describe things like the speed of a car. Without math describing how fast a car is going is much more difficult. Students will watch a video, make observations, and discover math to help them describe what is happening.

### Shopping Stacked Discounts

7.RP.3 In this lesson students “shop” for items and discover why stores often only let you take an additional discount off the sale price and not the original price.

### How Tall Is That?

Students will use proportions and proportional reasoning to accurately calculate how tall something is without actually measuring the height of that object – since it is really tall and they can’t!

### The Percentage of Change of Bubble Gum

7.RP.3 Students will compare the bubble blowing ability of regular chewing gum to bubble gum and find the percent of change between the two.

### The Ratio of a Chorus

7.RP.1 Students will listen to music and make ratios comparing the chorus length and song length to discover how important a chorus is to the song.