So many times the characteristics of triangles are presented as a vocabulary-type of lesson, but in this activity they are key to unraveling a proof. A unique attack on proving that an inscribed angle that subtends a diameter must be a...

Can people really measure time just by using the sun? Scholars venture outside on a nice, sunny day to build sundials and learn how people measured time 600 years ago. The class builds two different sundials while gaining practice with...

Middle schoolers delve deep into facts about HIV, AIDS, Hepatitis, and other STI's by way of discussion and a hands-on activity. Scholars ask and discuss questions anonymously using a Question Box. Two experiments showcase the...

Before coaching or beginning your next PE unit on volleyball, take a look at this 30-lesson unit that offers instructional techniques for each lesson, as well as warm-up activities, set inductions, and suggested coaching refinements.

A deep ocean current circles the globe at a force that is greater than 16 times all the world's rivers combined. Groups analyze the effects of submarine topography on deep ocean current speed. They then determine how this speed affects...

The inverse square law is revealed when your class participates in this activity. They move a graph paper or perfboard square back and forth in a square of light to see how the intensity changes. You will definitely want to add this...

Familiarize your young learners with the parts of a computer and some basic key terms relating to technology. As the teacher demonstrates using an LCD projector, class members practice moving a mouse, opening the Internet, typing in a...

Middle school scientists construct a working water wheel from an aluminum pie pan. Because of the sharp edges on the cut aluminum, this activity is for mature learners only. You could have your class compete to see whose wheel can lift...

All Together Now is the theme of this series of extra support lessons. The collection aids the instruction of blending sounds and reading high-frequency words through writing and reading sentences. Support also engages pupils...

To illuminate how afterimage occurs, create a star, square, or other geometric-shaped light for learners to look at for 30 seconds. Then, have them explain what they see as they shift their focus to a blank wall. A full explanation of...

A demonstration of elephant toothpaste hooks pupils' interest as they complete multiple experiments with colors, smells, bubbles, and more. By the end, they understand the differences between physical and chemical changes in the world...

A multi-part lesson opens with a review of p waves and s waves. Then scholars use a simple s wave simulator to view the way the wave travels. Next, pupils use cups and various fluids to simulate p waves moving through different...

Make electromagnetic eddy currents evident with this demonstration. You will need to gather a few materials from the local hardware store and a strong neodymium magnet, but the visual value is well worthwhile.