In this math learning exercise, learners calculate the answers to 27 algebra and geometry problems. They must find both exact answers and approximate answers.
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New Review Conducting a Simulation to Estimate the Probability of an Event
How can you complete a simulation when it is not practical to determine the probability of an event? Class members learn that in some situations, it is not feasible to find the probability of an event, but they can estimate it by running...
7th Math CCSS: Designed
Estimating Centers and Interpreting the Mean as a Balance Point
How do you balance a set of data? Using a ruler and some coins, learners determine whether the balance point is always in the middle. Through class and small group discussions, they find that the mean is the the best estimate of the...
9th - 10th Math CCSS: Designed
Next Generation Spacecraft—Orion
What is the cross-sectional area of the Orion spacecraft? Groups work together to estimate the area of a cross section of the Orion spacecraft by first counting the number of grids a scale drawing covers. Pupils also employ a method...
9th - 12th Math CCSS: Adaptable
New Review Estimating a Population Proportion
Find the percent of middle schoolers who want the ability to freeze time. The 21st installment in a series of 25 has groups collect a random sample of respondents who answer a question about superpowers. Using sample statistics,...
7th Math CCSS: Designed
Make Estimates About a Population Using the Mean of Multiple Samples
When samples provide different sets of data, the best way to calculate a more precise answer is with the mean. The lesson provides three different samples of data from a population that your learners should be able to calculate and find...
6 mins 5th - 8th Math CCSS: Designed
Estimate to Check Reasonableness
Sometimes your learners solve for the wrong answer, but they won't know until they estimate to check. This video introduces four methods: rounding, clusters, "friendly" numbers, and front-end estimates. See how each type is demonstrated...
5 mins 6th - 8th Math CCSS: Designed
Surveys and Estimating Large Quantities
Looking for an estimation activity a bit more involved than the typical "guess the number of jellybeans in the jar" game? Here, learners use a picture to estimate the number of people at a large event, look for potential problems with...
6th - 12th Math CCSS: Designed