6 ч 28 мин, 23 июн 2008 г. - When I was in 2nd grade I would use my fingers to add and subtract during a math problem.
Описание:
This shows Concrete Operational Stage, because during this stage kids start to apply logic and they need to use their fingers as hand on examples.Добавлено на ленту времени:
Дата:
6 ч 28 мин, 23 июн 2008 г.
Сейчас
~ 17 г назад