Time to study the most sensible function — rational functions! The seven-lesson unit develops the concept of a rational function through a connection to rational numbers and fractions. Scholars graph functions, solve equations, and...

An informative module highlights eight polynomial concepts. Learners work with polynomial functions, expressions, and equations through graphing, simplifying, and solving. 

The pre-lab portion of the lesson introduces emerging geologists to the various layers that make up Earth. After completing a sheet on the identification of the layers, class members simulate plate boundaries and their...

Second graders explore convection currents and how they relate to the movement of tectonic plates. Then, young geologists reconstruct Pangaea with a worksheet and pinpoint plate boundaries on a map...

The Progressive Era brought about a word that often leads to turmoil—change! Learners research the late 1800s in American history to uncover societal issues gripping the nation back in the day. The 15th lesson of a 22-part series...

How does a one-way mirror work? Though most everyone knows that one-way mirrors exist, having students model how they work turns out to be a very effective way to develop their thinking about how visible light travels and how we see...

An exploration of squamates, or scaled reptiles. Take notes about lizards and snakes using the pdf "Squamate Chart" while viewing a slideshow, investigate the squamate anatomy and how squamates differ from other animals, such as insects...

Use a virtual scanning tunneling microscope (STM) to observe electron behavior in an atomic-scale world. Walk through the principles of this technology step-by-step.

Through ten lessons and numerous activities, students explore the natural universal rules engineers and physicists use to understand how things move and stay still. Together, these rules are called "mechanics." The study of mechanics is...