A teacher teaching maths to seven-year-old Jack. She asked him, " If I give you one apple and one apple and one apple, how m apples will you have?"
Jack answered " Four!"
The teacher was a little disappointed(失望的) but she asked the question a.
Jack calculated again on his fingers and answered, " Four!"
The disappointment stayed on the teacher's face. She suddenly r that Jack liked oranges. So she asked, " If I give you one orange and one orange and one orange, t how many you will have?"
Jack calculated on his fingers again. There was no pressure on him, but a little on the teacher. She wanted to know if(是否) her new idea would succeed（成功）.
With a hesitating smile young Jack answered, "Three?"
The teacher now had a smile. Her idea succeeded. She f proud of herself.
Once again she asked him, "Now if I give you one apple and one apple and one more apple how many will you have?"
Jack answered " Four!"
The teacher was a little a . "How Jack, how?"
In a voice that was low and hesitating, young Jack answered, "Because I already have one a in my bag. "
