Curated OER
Simple Time
In this music instructional activity, students read a chart about time. For example, students read about the number of the crotchet beats, the minimum beats, and the quaver beats.
Music Theory
Music theory.net: Simple and Compound Meter
Examples of simple and compound meters, as well as explanations of the terms duple, triple, and quadruple. Plenty of illustrations accompany this terrific resource. By MusicTheory.net.