All of my products pertaining to teaching the student to type are color coordinated. The colors used for these keys will reinforce any lesson you may have already purchased, making this complete keyboarding course unified.
As you introduce the student to a new letter or just reinforcing the memorization of the keyboard, this hands-on activity will be a useful tool.
Have the student (either individually or in teams) use the smartboard to drag the correct letter matching the correct finger. The letter will disappear and congratulate the student if correct.
I like to use these types of lessons for group competitions that are timed.