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Percent of Change
Seventh graders investigate the concept of finding percentage by monitoring the increase of a quantity. The lesson is hard to follow because of the structure. The story for the example is quite useful though.
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Increasing and Decreasing Quantities by a Percent
As part of a study of percent and percent change, learners first complete an assessment task with several percent change problems. They then complete an activity using cards to create a diagram expressing percent increases and decreases...
7th Math CCSS: Designed
Calculate Percent of a Number Using a Proportion Model
The Common Core is all about ratios and proportions, and this video uses that method to calculate percents. This is the second video in a series that organizes information from an ice cream poll into a proportion to find how many vanilla...
6 mins 6th - 8th Math CCSS: Designed
Calculate Percent Increase and Decrease in Context
The main confusion with percent change is with setting up the problem. Show your learners how to use proportions to solve for the percent change and how to organize the information correctly. The lesson uses the scale factor method to...
5 mins 6th - 8th Math CCSS: Designed
Woodworkers and Finishers: Working with Area
Connecting math to furniture building comes in handy when the dimensions change and the cost of each piece needs to reflect the higher cost. Starting with a drawing of given quadrilaterals, learners calculate the original area and then...
7th - 9th Math CCSS: Designed