2. I opened my mouth and said, "OK, no problem." Dad said, "Did you see a clock in the mirror? Now the clock in the mirror is 7: 15. Can you imagine what time it is in the afternoon? " I thought for a while, but I didn't make it. Time goes by. I really didn't expect it, so I had to say shyly, "I can't come." When I looked back at the clock hanging on the wall, it was already 4: 45 pm.
Dad asked me if I could analyze how to study this problem now. Dad reminded me, what is the relationship between the hour hand and the minute hand hanging on the wall in the mirror? At this time, I immediately realized that they were symmetrical, which is what I learned recently.
When I got home from the shower, I asked my father to do some more tests for me. The first way is that the clock time in the mirror is 3: 30, and the second way is that the clock time in the mirror is 9: 40. I immediately began to work out the answers to these two questions on paper in a symmetrical way: 8: 30 and 2: 20. At this time, my father asked me if I had a little trouble every time I did the problem. Is there a better way? I thought for a while, but I couldn't figure it out. Dad went on to say, "remind the child again, add up the clock time and the actual time in the mirror, can you find any rules?" I quickly began to calculate, 3: 30+8: 30 = 12, 9: 40+2: 20 = 12, and found that the clock time in the mirror and the actual time add up to 12.
At this moment, I jumped with excitement. I know, I know, as long as the clock time in the mirror and the actual time add up to 12. I said, "It's so simple! Why didn't I think of that? " Dad smiled and said, "Is it simple? This shows that you should have a train of thought when you encounter problems.