Steven G
Elite Member
- Joined
- Dec 30, 2014
- Messages
- 14,559
Jeff,
Here is the issue. You are probably right that if the students are taught correctly they will use, in this case, cross multiplication correctly. The problem is that if you teach at a college the students come to you knowing/not knowing how to use cross multiplication. Most times when a student takes algebra or arithmetic in college it is because they did not learn it well in high school. More often then not, they did not learn when to cross multiply. I can assure you that these students fight and argue with you when you even show them how to solve x/a = b/c w/o cross multiplying. It may be sad but it is the case.
Here is the issue. You are probably right that if the students are taught correctly they will use, in this case, cross multiplication correctly. The problem is that if you teach at a college the students come to you knowing/not knowing how to use cross multiplication. Most times when a student takes algebra or arithmetic in college it is because they did not learn it well in high school. More often then not, they did not learn when to cross multiply. I can assure you that these students fight and argue with you when you even show them how to solve x/a = b/c w/o cross multiplying. It may be sad but it is the case.