Ben was the ten year old second son of a single mother. He had four siblings ranging in age from less than one to early teens.
Ben arrived at the RPS and was well behind most of his class.
When children can get almost all answers correct in less than 3 minutes they change to occasional maintenance testing: their 'number fact system' has stabilised and there is little point in further effort
Children track their mastery, the quantity of correct answers and the time taken.
Here are Ben's results at the beginning and end of three weeks. The achievements are all due to Ben's efforts.
The teacher only showed him
Ben did the rest:
In effect Ben learnt more than 80 number facts in three weeks. Not bad for a chronic underachiever.
See a mock up of Ben's runchart