There are many ways to look at percentages. Here are eight problems to practice the different ways to calculate percentages based on how the question is asked. There are no examples, just practice problems.
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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
Solving Percent Problems 2
Sal clarifies what it means when students see a percent problem such as 100 is what percent of 80? He explicitly defines what each component of the problem literally means and then clearly breaks down the process for solving the problem.
5 mins 5th - 7th Math CCSS: Adaptable
Describing the Meaning of Percent 2
Sal uses two 100 cubes and continues the process of describing what percents mean. He shades the cubes to show 109%, reviews vocabulary, and references the connection between percents, fractions, and decimals. Great for introducing the...
2 mins 5th - 7th Math CCSS: Adaptable
Percents and Equivalent Fractions
Why convert fractions into percents? The video reminds viewers that percents are a fraction with a denominator of 100. Using equivalent fractions, the resource shows how to change percents to a fraction without a denominator of 100. The...
9 mins 6th - 8th Math CCSS: Adaptable
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
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