Firelands Local Schools
Exponential Growth and Decay
How can you safely model exponential growth and decay? A hands-on activity uses candies to model not only exponential decay, but also exponential growth. Exponential equations are fitted by hand and by use of a calculator...
PBS
Inspector Detector
How do spacecraft detect magnetic fields? The fourth installment of a five-part unit has learners develop a device with magnets that allows for the detection of magnetic fields. They use a map of an imaginary planet to try out their...
Curated OER
Revisiting Walden Pond in 2003
Students make lists of things they would take with them if they were about to set off to live for a year in the woods. They read Thoreau's Walden Pond and compare and discuss their lists and the actual list of items Thoreau took with him...
Curated OER
Charge-Coupled Devices (CCDs)
Students explore CCDs or Charge-Coupled Devices. In this digital devices activity, students examine how CCDs are constructed, collect light, and create a digital signal.