Curated OER
Measuring the Area of a Circle
When mathematical errors happen, part of the learning is to figure out how it affects the rest of your calculations. The activity has your mathematicians solving for the area of a circular pipe and taking into consideration any errors...
CK-12 Foundation
Interpretation of Circle Graphs: Northwest Region Population Pie
Given populations of the five Northwestern states, learners create a circle graph. Using the data and the pie chart, they make comparisons between the populations of the states. Finally, the pupils determine how the chart will change...
Curated OER
Inscribing a Hexagon in a Circle
This activity is a follow-on activity to inscribing a square in a circle. The overall problem is more complex. It deals with geometric constructions, properties of triangles, and regular hexagons. The final part of the activity...
Math Worksheets Land
Pie or Circle Graphs—Step-by-Step Lesson
How do you display data that you've collected in a pie chart? Follow a clear step-by-step guide to turning survey results into a visible format. It shows kids how to determine the percentage of the whole that each section represents.
Curated OER
Circle Graphs and Percents
In this circle graph and percentages learning exercise, students fill in a chart, write percentages, calculate discounts, and more. Students complete 4 sets of problems.
Curated OER
Problem-Solving Application: Make a Circle Graph
In this circle graphs learning exercise, students analyze a data table about the activities in a day. Students then use this data to make a circle graph. Students answer 6 questions about the graph.
Curated OER
Circles
In this circles worksheet, 10th graders solve 10 different problems that include determining the chords, secants, and tangents of circles shown. First, they determine 4 different line segments given a circle with secants and chords with...
Curated OER
Circle Up Your M&Ms
Fifth graders estimate how many M&Ms are in a pre-counted bag. They determine how many colored M&Ms are in a bag, then decide which of the two, bar graph or circle graph (in this case, circle graph) would be best to show te results.
Math Mammoth
Circles Graphs and Percents
In this percent instructional activity, students read and interpret circle graphs. They determine discounts, and match percentages with circle sectors. This one-page instructional activity contains approximately 30 problems.
Curated OER
Percentages: Circle the Dots
In this percentages worksheet, students will circle 25%, 50% and 75% of the dots in different boxes. There are a total of 24 boxes.
Mascil Project
Circular Pave-Stones Backyard
Pack the lesson into your plans. Young mathematicians learn about packing and optimization with the context of circular paving stones. They use coins to model the paving stones, and then apply knowledge of circles and polygons to...
Curated OER
7th Grade Math Circle Graphs
Seventh graders are able to develop (synthesis) pie graphs with the class and on their own.  They are told that pie charts are a graphic representation of material that can be given in the form of parts of a whole by using...
Curated OER
Solar Storms-Fractions and Percentages
In this solar storms worksheet, students find the percentage of X-Flares and Halo CMEs that occurred in solar storms and complete a Venn Diagram comparing the numbers of each.
Curated OER
Leveled Problem Solving: Circle Graphs
In this circle graphs activity, students solve 6 word problems based on a circle graph about the most popular classes for sixth graders. Students calculate angle measures of circles for 2 of the problems.
Virginia Department of Education 
May I Have Fries with That?
Not all pie graphs are about pies. The class conducts a survey on favorite fast food categories in a lesson on data representation. Pupils use the results to create a circle graph.
Curated OER
Stretching the Truth
Sixth graders visualize different percentages as parts of a whole on visual images. They observe alterations of photographs, and models of circles, squares and sets. This incredibly detailed, eight-page plan leads you through everything...
Bowland
Ice Cream
Make sure there is enough ice cream on hand. Learners try to find out how much ice cream to buy for a sports event. Scholars use a pie chart showing the percent of a sample of people who like different flavors of ice cream. Using the...
Curated OER
Pies and Percentages--Learning About Pie Graphs
In this pie graph worksheet, learners draw a pie graph for the zookeeper with the data he collected, choose a different color for each animal species and make a key to the graph.
Curated OER
What's in a Number? Analyzing Smoking Statistics
Sixth and seventh graders analyze smoking statistics. For this health lesson, learners look at the percentage of people who smoke from each race group. They create a bar graph and circle graph that displays this information. 
Balanced Assessment
Dart Boards
Bulls eye! Design dart boards with specific chances of winning. Individuals determine the probability of hitting a circular and a triangular dart board inscribed in squares. They create dart boards that have a 50 percent chance of...
Curated OER
Our Solar System - Comparing Planetary Travel Distances
NASA presents a mini-unit on distances in our solar system. It incorporates scientific concepts of gravity, mass, density, and payload while your aspiring astronauts also employ mathematics skills. They calculate speed, they determine...
Curated OER
Ratio, Rates and Percentages
In this ratio, rates and percentages worksheet, 8th graders solve 22 various types of problems related to ratios, rates and percentages. They first write ratios in lowest terms and describe each of comparison stated. Students also solve...
CK-12 Foundation
Pie Charts: Soda Party
Using the interactive, pupils create a pie chart that represents the percentage of sodas bought for a party. Individuals need to determine the percentage and number for the final variety of drinks. The learners determine how the...
Yummy Math
US Holiday Candy Sales
Candy is a big business! Calculate the amount of money consumers spent on major holidays—Easter, Halloween, Christmas, Hanukkah, and Valentine's Day—based on the total amount of candy sales from 2011 and the percentage of each holiday's...