Elapsed time ruler
Could you have your team make an interactive elapsed time ruler? It should be colored for interest to students. It should have two movable sliders for the starting time and ending time on the ruler. Also, there should be two resizable clocks above the ruler where the user can change the time on the clocks by dragging the clock hands to create and solve an elapsed time problem. The ruler should be movable, in a few colors, be able to resize the ruler, be able to zoom in on a section of the ruler for the elapsed time problem.