Select the difficulty level, country, and knock yourself out making change. In my opinion this site would be best used with manipulatives.
This site has an interactive ruler that allows you to measure either in inches, centimeters, or both.
This site lets you select the hands that go on a clock based on what time the clock should display.
This site is a great tool for teaching telling time and figuring elapsed time. The face can be changed to emphasize hours or minutes, and elapsed time can be turned on or off.
This site lets you create worksheets to help students learn to tell time.
Harcourt Brace Elab
Print the follow up excercise, and practice elapsed time.
This is a very catchy coin song with good graphics. It can be enlarged to fill the screen, but it does get a little blurry this way.