Even more frowned on these days and definitely lo-tec, we were told nearly fifty short years ago to draw and fill in a 12x12 grid as we learned our 'times tables'. This firmly established the notion of the commutivity of multiplication right from the get go. It was also cool to see how little you had to remember left after doing the sixes. I did this with my DD too because I had found it useful. Putting it out here in case it helps anyone too.

Become what you are