Launch a lesson that's sure to capture middle schoolers' interest! Exploration enthusiasts examine the planets of our solar system using an activity from PBS's Space series. The resource includes images and information for each planet,...

Teens might find it hard to imagine life before GPS. Using global positioning systems, they can quickly locate the nearest gas station, fast food establishment, or the home of a new friend. Introduce them to Gladys West, the lady who...

A colorful poster introduces class members to Maria da Penha. A biopharmacist and activist, Penha was influential in writing and getting passed, Brazil's first domestic violence law which bears her name.

Everyone has the right to a smokefree workplace, but those who work in casinos are exposed to so much secondhand smoke that they can suffer the same ailments as heavy smokers themselves. Learn more about the effects of secondhand smoke,...

Want to learn some quick facts about Victorian England? Check out a series of fact cards that include information about class structure, education rights, public health, and Queen Victoria herself.

View these amazing high-quality images of our solar system from NASA with this lithograph set. Each lithograph contains images, facts, dates, and general information on a particular subject. Background information and teaching tips are...

Use the following lithographs to envision the scale of our solar system. View different models of planets at different scales, an infographic about the relative sizes of the planets and distance from the sun, and images of the largest...

Information about renewable energy and how the world's energy system must continue to transform in order to combat climate change. Presents statistics about what different countries are doing to use more and more renewable energy...

Thyis site offers problem solving systems and graphing systems of inequalities. Illustrations included.

Helps students discover the three basic economic questions and how each system answers these questions, identify several key advantages and disadvantages for each economic system, recognize some economic indicators that can measure...

A table that provides a rating of different operating systems, meant more for discussion than reference.

This is a 62-page course slideshow for a beginning anatomy class at the university level. It has lots of pictures and detailed information about the integumentary system, great for reviewing basic parts or as an extra classroom resource.

A collection of high-resolution images of space. Images "showcase the discoveries and excitement of planetary exploration, with a focus on the origin and evolution of the Solar System and the search for life".

This presentation explains why a poorly defined system can lead to incorrect answers in physics problems.

A gallery of pictures of the cosmic beauty of the Sun, our Solar System, and exoplanets. Pictures include a caption of what the viewer is looking at.

A tutorial which introduces the International System of Units, and its use in making measurements during scientific investigation.

This lesson provides an overview that explains the cardiovascular system in humans. It is 1 of 4 in the series titled "Animals: Human Cardiovascular System."

This slide show illustrates how to properly define a system of forces.

Take a look at the inner solar system, outer solar system and trans-Neptunian objects mapped in this portal. Explorers will find images from findings of space missions.

An illustration of the nervous system of a flatworm. Can be downloaded.

Learn about the three basic layers of the vascular system by examining cell and tissue specimens from those layers.

This CoolMath resource will teach students about natural numbers, positive numbers, and whole numbers.

Investigate the human gastrointestinal system with this extensive collection of microscopic specimens.

This resource provides a look at the circulatory system of a frog in dissection.