Blow your pupils' minds with information about some of the world's most awesome natural occurrences: volcanos. Class members read a short article and respond to included questions. The focus of the resource is on understanding and...

Get lost in the classifications. Using the backdrop of the Bermuda Triangle, pupils classify it by angle and side measures. They also learn information about the triangle and its history.

Newspapers aren't only for reading—they're for learning skills, too! A journalism unit provides three lessons each for primary, intermediate, and secondary grades. Lessons include objectives, materials, vocabulary, and procedure, and...

Drawing circles isn't the only thing compasses are good for. In this first installment of a 36-part series, high schoolers learn how to draw equilateral triangles by investigating real-world situations, such as finding the location of a...

This turn-key unit on ratios and unit rates walks through a 30-lesson unit on teaching proportional reasoning, with each lesson broken into detailed teaching notes and time allotments for all parts. An unbelievable resource when taken...

What if I can no longer justify area by counting squares? Lead a class discussion to find the area of a rectangular region with irrational side lengths. The class continues on with the idea of lower approximations and...

Could the history of bread really be interesting? Yes, it could! An informational text gives scholars wheat production background from 8,000 years ago, discussing different types of bread and the current industry in Oklahoma. Learners...

The greater the degree, the more solutions to find! Individuals find the real solutions from a graph and use the Fundamental Theorem of Algebra to find the remaining factors. 

When will we ever use this? A Pixar movie maker explains to students how math is used in the creation of animated films. The movie maker discusses the importance of coordinate planes, transformations and translations, and...

Round and round they go ... where they stop, only scholars will know. By writing systems of equations, classes determine the number of cars a roundabout can handle given specific constraints. Systems use up to six variables and become...

Use everything you know about quadratic equations to solve polynomial equations! Learners apply the Zero Product Property to factor and solve polynomial equations. They make a direct connection to methods they have used with quadratic...

Don't give your classes the third degree. Use radians instead! While working with degrees, learners find that they are not efficient and explore radians as an alternative. They convert between the two measures and use radians with the...

Emergencies happen. Be prepared the next time you have to call in a substitute with a lesson plan designed to meet the needs of a kindergarten class. Throughout the day, class members work with number and alphabet cards, identify numbers...

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,...

Can two lines intersect at more than one point? Using yarn, create two lines on the floor of the classroom to find out. Cooperative groups work through the process of solving systems of equations using task cards and three different...

Learn a different way to determine variability. An informative lesson provides directions on how to calculate the mean absolute deviation of a data set. Pupils use examples to learn the process and then practice finding the mean absolute...

Students explore reading maps. In this map reading lesson, students compare distances fom place to place. Students work in groups and predict the distance then find the actual distance using string or rulers.

Capture the engagement of your young mathematicians with a collaborative graphing activity. Using a deck of zoo animal picture cards, learners select a picture from the deck, record the chosen animal on a graph,...

Help pupils see the world through the eyes of a mathematician. As they examine tide patterns, sound waves, and stock market patterns using trigonometric functions, learners create scatter plots and write best-fit functions. 

How many large and small watermelons did he sell? Just use the given information to write and solve a system of equations! The two videos accompanying the lesson explain the substitution method and then introduce problem solving. The...

Explore the concept of mean, median, and mode with pupils. They estimate the length of a string or the number of M&M's in a jar. Then find the mean, median, and mode of the class' estimates.

Pupils solve various word problems that deal with common denominators, and write the mathematical explanations they used to obtain the solutions.

In this volume and surface area worksheet, students find the volume and surface area of different solid figures. Students complete 8 problems.

Students find strategies for investigating number problems. They find a common multiple of a group numbers. The teacher introduces the problem and students read and think about it. In groups, students discuss the problem and write...