Timing: how important it is for taking strategic decisions?

Strategic decisiveness is one of the most vital success attributes for leaders in every position and every industry, but few leaders understand where it comes from or how to find more of it. It is not surprising that picking one strategic direction and then decisively pursuing that direction are hallmarks of good leadership, if not boilerplate management skills. The big mystery is why these obviously important skills are still rare enough to distinguish excellent leaders from average managers.

10 top online learning resources for everyone

These sites will help you to keep in touch with the most actual teaching techniques and materials:
 
1. PhET - free online science and math simulations - virtual labs and simulations, with lesson plans, to use with students.