Puzzle your way through to a new understanding of area. Scholars learn about the area of polygons through equidecomposability, the idea that polygons that can be decomposed into the same set of pieces have the same area. By using...

Don't rush into algebra, let learners visualize, guess, and predict their way to a successful math career. The introductory unit incorporates beginner algebraic concepts with shapes instead of variables. Young mathematicians use a...

In this shape lesson, learners cut out tangram shapes and create different pictures with them. They look at 3-D shapes as well. There is a nice, hands-on component built into this lesson.

Isn't paper pushing supposed to be boring? Learners attempt a paper-pushing puzzle to develop ideas about angles inscribed on a diameter of a circle. Learners then formalize Thales' theorem and use geometric properties to develop a proof...

Students discover early number concepts for numbers 1 through 5. In this number concepts lesson, students work in stations doing hands-on activities such as sorting colored blocks, stringing beads, and counting sticks. Students also...

Young scholars observe liquids in different containers and then explore the concept that liquids have level surfaces. They identify those who are not at the center to reinforce the concept of liquid levels with a representational puzzle...

Students practice using visuals to solve math problems. In this math manipulative lesson, students utilize pattern blocks to participate in a class game in which geometric shapes touch other player's pieces. Students gain points based on...

Fourth graders participate in a teacher-led discussion about temperature--hot and cold. Each group of students is assigned specific materials for their lab experiment. They record temperatures measured in their journals and then plot...

Students discuss income and expenses. In this lesson on money, students define income and expenses, after whith they keep track of their income and expense transactions on a basic ledger.

Students construct two dimensional models to illustrate squared numbers. For this geometry lesson, students use graph paper and an x/y axis to build squares exponentially. Students identify powers and relationships between various...

Students explore biology by identifying a diagram. In this cell anatomy lesson, students read a story about archeology and conduct a fictitious archeology dig in class in which they search for animal cells. Students define a list of...

Learners investigate the dangers Coral Reefs face by investigating satellite images.  In this environmental protection lesson, students utilize the Internet to discover the types of satellites and sensors used to provide...

Students tour Chandra's top galactic X-ray images. In this Chandra X-Ray Observatory lesson, students play games and complete puzzles based on the Chandra Mission and X-Ray Astronomy. Students listen to pod casts, question an...

Learners experiment with skeletons. In this bone health lesson, students analyze, construct, and perform comparative investigations with bones. They make inferences about the structure and function of various bones. This lesson includes...

Students investigate various games employing graphs as game boards.  In this game theory lesson, students problem solve through the use of graphs.  The lesson is a list of both indoor and outdoor games to...

Students see evidence of chemical reaction and follow the scientific method to hypothesize, observe, and reach conclusions. They conduct a series of egg based experiments such as forming crystals and complete journal activities as a...