Who is taller? And who is the tallest? Help your Spanish language learners express comparison by teaching them about comparatives and superlatives. The first part of the webpage includes in-depth explanations with examples of...

Skeeters are used to model linear and exponential population growth in a wonderfully organized lesson plan including teachers' and young scholars' notes, an assignment, graphs, tables, and equations. Filled with constant...

What do physicists and musicians have in common? A lot more than you might think. After first viewing a slide show presentation and completing a series of skills practice worksheets on the physics of light, sound, and...

What kind of experiment can your class do to how observe the environment effects on organisms? Groups design and conduct lab experiments to learn about the effects of the environment on aquatic organisms. Based upon knowledge gained...

Most people have heard of Aesop's Fables, but who was Aesop and when did the fables actually get recorded? Teach your class all about Aesop and fables in general with the presentation before inviting them to examine several fables and...

By using explicit textual evidence, individuals can strongly support their ideas and opinions. The presentation suggests in order to use explicit textual evidence, one must state their idea, cite evidence in the text that led...

Winter, spring, summer, and fall—Earth experiences them all! But what about Mars? Scholars compare the planets in terms of distance, tilt, and rotation during a lesson from PBS's Space series. Great visual models of Earth and Mars, plus...

Plagiarism, copyright, and fair use are the focus of a three-part instructional activity designed to inform scholars of how to properly cite others' work. First, pupils use a KWL chart to begin thinking and...

Connect the size of a rolling cup to the size of circle it makes. Pupils view videos of cups of different sizes rolling in a circle. Using the videos and additional data, they attempt to determine a relationship between cup...

The challenge: determine whether a tank will float. A design activity has groups work as engineering teams in order to determine the stability of given tanks and liquid contents. The teams need to determine the equations to...

See how a marshmallow can hold up a bridge load. Teams take a closer look at the design of bridge piers. They determine the types of loads that might affect a bridge, and, using that information, they calculate the needed cross-sectional...

Will this water source support life? Small groups test the chemistry of the water drawn from two different sources. They then compare the collected data to acceptable levels to draw conclusions about the health of the source. The...

How diverse are the benthic organisms found in local streams? Using the information learned in previous lessons on identification of macroinvertebrates and on calculating stream index values, groups determine the health of local...