Use of Dichotomous Keys to Identify Stream Organisms
What kind of organisms are living in the stream? After an explanation on how to use a dichotomous key, groups of three to four use the keys to identify macroinvertebrates from a local freshwater stream. Using the the concept of Stream...
8th - 12th Science
Classroom Paper Recycling
After reading about the history and recycling of paper, creative crafters collaborate to think of a new process for making recycled paper. A complete teacher's guide and student worksheets are included. There is no written procedure for...
3rd - 12th Technology & Engineering CCSS: Adaptable
New Review Show Me the Money
Class members learn how to estimate the total costs involved to design and build a bridge by including design, material, equipment, and labor costs. The activity includes a discussion about the trade-off between cost and aesthetics.
6th - 8th Technology & Engineering CCSS: Designed
May the Magnetic Force Be with You
Class members use mathematics in order to better understand magnetic forces and their interaction on charged particles. After a demonstration of the interaction between a magnet and an electron beam using a CRT computer monitor, learners...
10th - 12th Science CCSS: Designed