Classroom Countdown Timers for Smartboard - Dynamite!

All you incredible, creative teachers will find hundreds of uses for this on your class whiteboard. The timer below is a 30 second version, but the download will also contain 1, 2, 3, 4 and 5 minute versions. Click the dynamite to start the timer. Click at the end to reset.

About Planet Primary Flash Files
All our flash files are exactly that - collections of flash files that you can add to your smart notebook teaching files. See our full curriculum collection on

How to open Flash files:
Flash files are easy to drop in to your interactive whiteboard software, or open in a web browser using File-> Open -> Browse for any file type.

Watch this video here for instructions on how to insert flash files in to smart notebook:

How to add flash files in powerpoint:


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  • 1-minute-dynamite.swf
  • 2-minute-dynamite.swf
  • 3-minute-dynamite.swf
  • 4-minute-dynamite.swf
  • 5-minute-dynamite.swf
  • 30-second-dynamite.swf

About this resource


Created: Mar 9, 2012

Updated: Aug 9, 2019

swf, 147 KB


swf, 147 KB


swf, 151 KB


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Creative Commons "Sharealike"

Creative Commons "Sharealike"