Music Theory
Music theory.net: Keyboard Trainer
A fantastic resource for music teachers and students learning to play the piano. This online quiz can be customized to test students on specific keys. Students can click "Toggle helpers," to check answers along the way.
Yale University
Yale Collection of Musical Instruments: Keyboard Instruments
Learn about keyboard instruments from the collection of Yale University in this image gallery with descriptions of each piece, including pianos, harpsichords, and organs.
Ducksters
Ducksters: Music for Kids: Piano Playing Basics
Kids learn the basics of playing the piano on this site. Find information about the keyboard, middle C, position, and practice.
Other
Piano Music Sight Reading Practice
Actually this clever site drills pianists on note names and note placement on the keyboard. Kids can access this site at home for practice. Both treble and bass clef are used.
Other
Piano Nanny: Piano on the Net
This site provides extensive piano lessons, utilizing helpful guides complete with audio. Detailed information on the computer configuration needed for this site is given, as well as a 12 note keyboard.
New York Times
New York Times: Crossword Puzzle: Musical Instruments
An interactive and printable crossword puzzle developed by the New York Times Learning Network. The theme of this puzzle is Musical Instruments.
Music Theory
Music theory.net: Key Trainer
A terrific tool for music teachers and students! Test students' knowledge of key signatures with this online quiz. Click "toggle" to check answers along the way, or click "setting" to customize the quiz.