Fifth graders reorganize comic strips to have them make sense, complete outline and organize their thoughts into outline form to explain directions, and use that outline to complete their own directions for geometry activities.

Fourth graders study the habitat of the American bison and its role in the life of the Native Americans. They investigate how the bison effect the Lewis and Clark expedition.

Students research the immigration of America. In this American immigration lesson, students complete a unit of activities to learn about American immigration.

Students design and build a car that is capable of traveling across the floor quickly, and also up a steep ramp.

Learners design and build a balance using LEGO, string, and a set of standard metric weights.

Given the description of a real-world relationship, find the sinusoidal function that models it. Students receive immediate feedback and have the opportunity to try questions repeatedly, watch a video or receive hints.

Given a function that models an exponential situation, find the factor by which the quantity changes per unit time interval. Students receive immediate feedback and have the opportunity to try questions repeatedly, watch a video or...

Solve problems interpreting change in exponential models with manipulation.

Given a function that models an exponential situation, rewrite the function in order to find its change for a different time unit. Students receive immediate feedback and have the opportunity to try questions repeatedly, watch a video or...

Solve general word problems about real-world relationships that can be modeled by linear equations or functions. Students receive immediate feedback and have the opportunity to try questions repeatedly, watch a video, or receive hints.

In this exercise, students practice adding decimals 0.5. Students receive immediate feedback and have the opportunity to get hints and try questions repeatedly.

Use area models, number lines, and tape diagrams to multiply a whole number times a fraction. Students receive immediate feedback and have the opportunity to try questions repeatedly, watch a video or receive hints.

Compare features of two real-world relationships that can be modeled by linear functions, where the functions are represented in different ways. Students receive immediate feedback and have the opportunity to try questions repeatedly,...

Given a few features of a sinusoidal function, find its formula. Students receive immediate feedback and have the opportunity to try questions repeatedly, watch a video or receive hints.

Practice solving fraction addition and subtraction word problems. The fractions in these problems have unlike denominators. Students receive immediate feedback and have the opportunity to try questions repeatedly, watch a video or...

In this exercise, students practice adding and subtracting fractions with unlike denominators word problems. Students receive immediate feedback and have the opportunity to get hints and try questions repeatedly.

Practice word problems that involve using the fraction bar as division. Students receive immediate feedback and have the opportunity to try questions repeatedly, watch a video or receive hints.