Here is a real-world application for systems of equations. When is it better to pay an enrollment fee and lower daily rate, and when is it better to pay the regular price? The local swim center is having a special offer, reductions in...

Passive solar heating is a technology that's been in use for thousands of years. Here, elementary schoolers are exposed to this type of heating, the materials that are used in passive solar heating, and they study how engineers design...

Third in a set of lessons regarding reservoirs, dams, and hydropower, this involves a two-day hydropower plant simulation. Collaborative groups build, maintain, and finance the plant. The transparency of the reservoir setup can be...

Learners make "leprechaun dust" in this short art lesson plan using Jello instant pistachio pudding, small jars, milk, and spoons. Ideal for celebrating St. Patrick's Day with early-elementary learners. Can be combined with the reading...