Mathematics Teaching, June 1st, 2005
Many young students have difficulty with word problems involving subtraction because they only know subtraction as a 'take away' operation: "How many are left when some are removed?" There are, however, many different simple situations that require subtraction including completion, comparison, and whole-part-part analysis. Students need to experience these less familiar subtraction settings many times so that they internalise the language of subtraction:
"How many more are needed?"
"How much larger?"
"What is the difference between these?"
"How many of these are not like the subgroup just ...
HighBeam Research, Free Preview: 'HANDS ON SUBTRACTION'... Full Membership required for unlimited access. Free 7-day trial.
Subscribers: HighBeam content is only available to HighBeam subscribers. Click the link above for more information.
