-"What do you think of when you see this topic?" /"What math questions do you want to ask?" /"What do you want to discuss?"

-"What did you learn after preview? Is there a problem? " -"Report the data, information and materials you collected.

-"What can be seen from this question (statistical chart, table)?" /"What information did you get?"

-"What issues should I consider when traveling and selling things?"

-"According to the information given, who is willing to help him think of a good way"/"Ask the students to help him design a feasible plan (such as traveling, riding, laying tiles, designing graphics, etc.). )"

-"Say a word according to the divisible relationship of numbers and several times of knowledge".

-"Who dares to try?" /"Who can try to solve it by themselves?"

What you said is very good. Is there any other solution? /"Can you think of a better solution?" /"How many can you think of"? /"See who has come up with many solutions?"

Would you please share your thoughts with your partner?

-"Who wants to talk about it?" /"Who can give a few more examples?"