Permutations  

出　　处：《中学生数学》2023年第8期F0003-F0003,共1页

摘　　要：Hands-on Mini Lab Work with a partner.STEP 1 Write math,science,and language arts on the index cards.STEP 2 Choose one of the subjects as the first class of the day.Choose one of the remaining two subjects for the second class.The third class is the card that remains.

关 键 词：hoose class. CLASS 

分 类 号：O17[理学—数学]