Calculate Your Contribution

Your young authors write a story that models a situation in which the character is faced with a challenge that involves the missing side or angle of a right triangle, and requires the solving of a trigonometric function to obtain...

You can lower your ecological footprint by recycling! Lesson four in this series of five has individuals, through the use of a computer, calculate their ecological footprints. Through discussions and analysis they determine how many...

A big contributor to greenhouse gas emissions is livestock, so the less meat you eat, the lower your carbon footprint! During lesson four in the series of five, learners calculate their and their families' carbon footprint using the...

Teach your class the descriptive characteristics of soil. Provide information about particle size and a flow chart for assessing texture. Soil scientists then analyze samples and hypothesize which would be the best type for a rain...

What was your age the first time you lost a tooth, broke a bone, or learned to ride a bike? Young mathematicians choose a set of data to examine with an educational lesson on statistical measurements. After they collect data and...

What do rectangular watermelons, the game of Battleship, and soil beds have in common? Explore the relationship between area and volume with an educational instructional activity about gardening and geometry. Kids work in pairs to...

Looking for a tree-rific addition to your water cycle unit? Teams of young foresters examine the role of transpiration in the water cycle through a week's worth of activities. Pupils analyze how trees take in and transport water during...

Teams must determine the size of cavern needed to house the citizens of Alabraska to protect them from the asteroid impact. Using scaling properties, teams first determining the number of people that could sleep in a classroom and then...

Looking for the best inclined plane for the job? Groups calculate the theoretical mechanical advantage for four different inclined planes. They determine the actual mechanical advantage by measuring the amount of force needed for the...

Most chemical reactions are non-reversible, but a few are reversible, having both a forward and backward reaction at the same time. In an interactive simulation, viewers see a continuous reaction. Your class understands how total energy,...