编辑同志: 我的独生子今年六岁半,刚上小学。他在学习数学中反应较慢。例如,问他二加二等于几,他得扳手指算后才答上来。可我们同院一个五岁的孩子,别说十以内的加减法,就是二十以内的他只要眨眼功夫就能心算出来。要说家庭辅导吧,人家并不见得比我们多。这是怎么回事?我该怎么帮助他? 云南刘竹清 Editor's Comrade: My only child is six and a half years old and just attending elementary school. He is slow to learn math. For example, ask him two plus two equal to a few, he wrench only after the answer up. But we have the same hospital a five-year-old child, not to mention the addition and subtraction within ten, that is, within twenty he can blink of an eye as long as the blink of an eye. Family counseling to say it, others do not necessarily see more than us. What is going on? How can I help him? Yunnan Liu Zhuqing