Lesson Plan
Curated OER

Go Figure! Using Percents in the Real World

For Teachers 6th
Sixth graders solve sales tax problems.  In this solving sales tax problems lesson plan, 6th graders find the sales tax on various items.  Students are given a list of expenses that a family spent on vacation before...
Lesson Plan
Curated OER

Are Taxes "Normal?"

For Teachers 8th - 12th
Students explore the concept of normal distribution. In this normal distribution lesson, students find the normal distribution of taxes in the 50 US states. Students make histograms, frequency tables, and find the mean and median of tax...
Lesson Plan
Illustrative Mathematics

Anna in D.C.

For Teachers 5th - 8th Standards
The amount of tax and tip on a restaurant bill is a common example used in percent problems. Here, learners only know the total amount paid, and they need to figure the itemized amounts. Solutions using a ratio table, using knowledge of...
Lesson Plan
Curated OER

Percents and Discounts

For Teachers 9th - 10th
Students convert between decimals and percents. In this algebra lesson, students define percent as it relates to sales and tax. They calculate the percents of number using multiplication.
Lesson Plan
Curated OER

Using Ratios to Taste the Rainbow

For Teachers 9th - 11th
Learners solve problems using ratios and proportion. In this algebra lesson, students analyze skittles and their different colors as they apply the properties of ratios and proportions to solve their problems.