Lesson library

Small, complete teaching examples. Open a demonstration, read the teaching notes, and adapt the plan for your class.

3 lessons
Computer science25 min teaching plan

Why binary search needs order

Follow the remaining search interval, and explain why the discarded values cannot contain the target.

Electronics30 min teaching plan

A voltage divider under load

Change the resistance, predict the output, then connect a load and compare the result.

Mathematics20 min teaching plan

When the average moves

Move one observation and compare the mean with the median of the same small dataset.

The timings are suggested teaching plans. Adapt them to your students and the time available.