'Tong-ing"

N got too bored with the scooping activity and his teacher suggest i vary the exercise. So i decided to let him try using the tong to transfer the marbles from one bowl to another. At first he wasn't too excited about it. I think he wanted to stop the game once he realise it was too challenging. Today, i saw him secretly trying it again (without taking it out from the shelf). I pretended not to but i saw he is slowly picking up the skill!