All observers, students or professional astronomers, must remember never to look through an unshielded telescope aimed at the Sun! Then you even risk to become blind. The sunlight has a tremendous heating power. With a big telescopes, eye damage will occur within less than a second.
Some good telescopes are sold with a proper optical solar filter. There are, however, another easy and safe method by which you can observe solar spots without any risk:
This projector method will give fine results. You can see on the figure how it works. The binoculars should be mounted on a camera tripod. Keep the lense caps on while you are aiming the telescope towards the sun by looking at its shadow. By this method many students can observe the sun at the same time, and you may use it for looking at a solar eclipse as well as viewing sun spots. You may even draw the solar spots or take picters of the solar spots with a standard camera this way by picturing the projected image.
Remember to write down the time and date when you do your obervations. And once again: Be careful with your eyes and your telescope, and don't leave the telescope unattended!
You may also find more information about how to observe the Sun in the information about the Solar Eclipse on October 12, 1996.