First, the sunset is red. I put the chicken in the cage. Half of the chickens are in cages, five are catching bugs, and the other five are buzzing around me. Children, let's count. How many chickens are there in the cage?
Analysis: Examine the thinking of seeking difference. Parents can encourage their children to pose with their hands and cultivate their ability to solve problems with their hands.
Second, it takes 1 minute for a cat to eat a fish. So, how many minutes does it take for 100 cats to eat 100 fish at the same time? It takes five minutes for five children to eat five apples at once. At this rate, how many minutes will it take for 10 children to eat 10 apples at the same time?
Analysis: test common sense. The time for an individual to complete a thing is constant. Parents can guide their children to observe the time for completing things at the same time, and then classify them into topics.
Third, Xiaohua has 10 red balloons, and Xiaohua has 8 yellow balloons. Xiaohua exchanged four red balloons for three yellow balloons for Xiaohua. How many balls does Kobanawa Xiaohua have now?
Analysis: Examine the thinking of seeking difference. Parents can encourage their children to pose with their hands and cultivate their ability to solve problems with their hands.
13 The children have caught five "chickens" by playing the game of "the eagle catches the chicken". How many didn't get caught? It was getting late, and my mother asked Xiaoming to turn on the light in the room, but the naughty Xiaoming pulled the switch nine times in a row. Can you tell me whether the light is on or off at this time? What about 20? 100?
Analysis: test common sense. The time for an individual to complete a thing is constant. Parents can guide their children to observe the time for completing things at the same time, and then classify them into topics.
Xiaoqing has nine story books, Xiao Xin has seven comic books, and Xiaoqing traded three story books for two comic books in Xiao Xin. How many books do Xiaoqing and Xiao Xin have now?
Analysis: Examine the computing power. Parents can ask their children to draw a circle to solve problems, and the process of drawing a circle by hand is also a process of transforming concrete thinking into abstract thinking.