DS aged 10 was kept back from assembly by his somewhat ambitious teacher to do some science extension work as an "experiment" (her words). He is one of the more able kids at science apparently.
Anyway, he got the method right but made a stupid mistake with a calculation - added two numbers rather than multiplies them. So she went and found the coolest teacher in the school (in DS's opinion) and made DS sit in front of this teacher wearing a pink fluffy hat repeating the times table he'd got wrong 10 times.
DS said he was embarassed. i actually think it's inappropriate though DP thinks I should just let it go? This is a young, pushy teacher who's getting them all very worked up about SATs at the moment.