An efficient way of adding sets of equal numbers of objects
(a) 3 sets of 2, or 3 twos
(b) Sets of 2 put out 3 times
Magnification, often associated with enlargement or scale.
(a) 3 times as many as 2 ( 3 times 2)
(b) A set of 2 trebled
(Biggs & Sutton 1983, p.52)
Division is the reverse operation of multiplication
There are two aspects in division. The two aspects are sharing and subtraction.
"In sharing, a collection of objects (or a quantity) is divided into a given number of equal sets (or parts): objects in as et are then counted. The subtraction aspect is sometimes called the grouping or measuring aspect" (Biggs & Sutton 1983, p. 62).
Home
No comments:
Post a Comment