Do you use Powerpoint 2010 on a PC? If so, there’s a simple trick for turning your mouse cursor into a laser pointer. Following these instructions, from the Slide Show view you can hold down CTRL, click and hold the left mouse button, and use the pointer to illustrate your discussion. You can even change the color of the laser!
A similar function is available in Keynote for iPad (not in Keynote for Mac computers). To activate the pointer, touch and hold anywhere on your iPad screen after launching your presentation. A red and white pointer will appear and move along with your fingertips.
More information on teaching with the iPad is coming soon!