Carefully pop off the back of a Sharpie accents highlighter using a knife. Yellow or green works best. Pull out the innards, and cut the plastic. Be careful, it's messy! Put it in half a plastic cup of water. Turn on the blackli
The sun clock can help the students determine what time it is by putting a pencil in the middle of the clock which will be the hour hand for the clock , and the students can learn about the minutes of the clock so that they can learn how to tell time.