Keywords: finishing the sixth grade of interesting primary school

This article applies to: the sixth grade of primary school.

Composition source:

This 400-word composition is about the sixth grade of primary school. The title is "Interesting Sorting-My math diary (I)". Everyone is welcome to contribute enthusiastically.

Interesting sorting

-My first math diary.

After dinner tonight, my mother asked me to make graphic cards with her. We made yellow triangles, blue squares and red circles. After finishing, my mother took me to play a math game: interesting sorting.

Mom asked me to hold these graphics cards and line up according to certain rules. Isn't that simple? I picked up the graphics and began to sort them out. I put a blue square, a yellow triangle and a red circle first, and then I followed this rule all the time.

After rowing, my mother asked me to explain the rules of rowing and praised me for my good rowing. But my mother asked me to think about it, if I could get rid of other different laws. Of course, I thought about it and began to lay out the layout again.

The rule of my arrangement this time is: one more red circle at a time, the same number of yellow triangles and one more blue square at a time. My mother praised me again and told me: more and more every time, this is called the law of increasing. Interestingly, I have made several incremental rules myself.

I thought again: you can play it once more or once less! I began to make a rule again: less than one red circle at a time, two yellow triangles at a time, and one blue square at a time.

Mom said it was a good job. Let me guess what its rules are, and it becomes less and less every time. I think: that law just now is an increasing law, and this law should be a decreasing law less and less! I told my mother, and she said happily, "Yao Yao, you are great. This is called the law of decline. " I put forward several declining laws.

I feel very happy today, because I played an interesting math game and learned a lot about the law of increase and decrease. I think next time, as long as I use my brain actively, I will discharge more different rules!