當中最後一段有特別說明 "During the elementary grades, children must be comfortable with describing multiplication situations in all these ways. They should learn that these two expressions mean exactly the same thing, and that they are both correct: 2 cookies per student x 23 students or 23 students times 2 cookies per student Also, elementary students ought to be using mathematics to answer questions in real, familiar contexts. They should not be doing isolated computation. Things like 6 x 8 with no explanatory labels—should never be encountered. In later grades, and for the rest of their lives, the important thing for them to know is that 6 x 8 and 8 x 6 are the same number—regardless of what those products represent."