“It was a miracle.” Basil Heatter’s “The Long Night of the Little Boats,” which details the miraculous rescue of the British army from the shores of Dunkirk in 1940, is featured in a series of exercises that ask class members to read,...

Bridge the gaps in your knowledge of bridges. Individuals learn about bridge types by building models. The activity introduces beam bridges, arch bridges, truss bridges, and suspension bridges.

A well-designed, comprehensive, and attractive slide show supports direct instruction on how sonar and echolocation work. Contained within the slides are links to interactive websites and instructions for using apps on a mobile device to...