Topic: Sound and wave types Lesson duration:1.5 hours Target audience: 10-12 grade (basic algebra) Lesson format: powerpoint with provided Cornell notes, teacher examples and then student practice. STudent worksheet as well as Exit quiz included. Materials: tuning forks (optional) Texas TEKs: P.7A: examine & describe oscillatory mo on & wave propagate on in various types of media. P.7B: investigate & analyze characteristics of waves, including velocity, frequency, amplitude, & waveleng