For example, all children should learn their multiplication tables by the third grade. They should be able to repeat them, verbally, without using a calculator. Children in elementary school who rely on the calculator for the answers are creating math deficiencies, which could have a negative impact on their math development.
Parents can assist with developing a lot of the fundamental skills needed for children to succeed in math when they attend school. Parents can do things that will support the schools and hopefully the schools will do the rest.
The same general idea worked when it came to my son's Lego's! It was a great way to work on patterns and following directions! I would draw a pattern on paper for him to copy and recreate with his Legos. It not only helped with his color recognition, but his problem solving skills, fine motor skills and he didn't even know he was doing math!!
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.