This interactive whiteboard resource is the result of a suggestion in the comments on the Number Line IWB resource. The suggestion was to adapt the number line to allow it to be used to show elapsed time. The result is this interactive whiteboard resource.
There are 2 clocks that have draggable fingers to set a ‘from’ and ‘to’ time. The number line shows whole hours and 15 minute intervals. You can annotate directly to this using the built in annotation and your notes will scroll with the number line. Using these tools you can demonstrate how to use a number line to calculate how much time there is between 2 given times.
Like the Number Line resource the interface for this resource uses physics to allow you to use inertia to scroll along the number line by dragging on the bottom bar. It is hoped that this method is more natural for use on the IWB (but it is not so conducive to mouse control). Unlike the Number Line resource this number line does not bounce at the end of the scroll. Comments on the interface or further suggestions for development are welcome.