When cooking a meal, have your child judge when the food is ready and have him compare the difference between cooked and uncooked vegetables to help with his observation ability.

• 百宝箱内容妈妈做饭时，让孩子练习判断菜什麽时候熟了，同时比较生菜和熟菜颜色的不同，以训练孩子的自然观察能力。