Elementary math is the building block on more complex topics that students must learn for the future. From simple addition and subtraction to telling time, it is a fundamental knowledge base used throughout life. Computers are also a basic fundamental building block for the future. Math programs integrate both.
The trade worksheet helps put you in control of your trading. Calculating your profits and losses ahead of time lets you know if the risk you are taking is a risk worth taking. This is how you gain control of your trading. You become prescient on whether the opportunity you are taking is a good one or not. This puts you ahead of the majority of traders who simply fly by the seat of their pants.
If you are a swing trader or a position trader, it is easier to maintain a trade-by-trade trading journal. However, a day trader or active trader may find it difficult to document each trade, so a general sentiment of how he is maintaining his system and the overall sentiment on the day may be more appropriate. As you learn some of the various risk management techniques, it will become simpler to use a trading journal on a per-trade basis. Until then, let's take our time.
School administrators, teachers and parents are also able to use the computer-based programs much like the former means of checking math worksheets on students' homework.