REMEMBER THE FOLLOWING "PERSONALITY RULE" FOR Multiplying or Dividing INTEGERS...
Imagine there is a party where many people are hanging out.... If you have 2 positive people chatting, they will have a good or "positive" time, so + x + = +
If you have 2 negative people chatting, they will also have a good time because after all they can both complain, but eventually they are having fun because they have like personalities. So.... - x - = +
BUT if you have a positive person hanging out with a negative person, they will not have a good time because they are not alike... so... + x - = - or - x + = -
This "Personality Rule" applies whether you multiply or divide integers... and there you go, an easy way to remember the sign rules of integers.
Ms. Stewie
A REALLY GOOFY RAP ABOUT INTEGERS.... But if it helps you understand... awesome!
Your videos are awesome! I see they're from TeacherTube. Is YouTube blocked at your school, too?
Your personality rules for multiplying are superb. One of my students had told me about something he learned, that "good things (+) happen to bad people (-) and that's bad (-).", etc, but the party reference is more relevant to high schoolers! haha!
As a teacher, I have found negative numbers, especially addind and subtracting them, to be a huge stumbling block. I came up with a tool for adding integers of opposite signs, (ie: -12+7 or 7-12) that gives kids a manipulative to hold and that makes this abstract concept more concrete.
You may find my tool useful. I found for myself, even though I teach 11th grade, the most mistakes my students make are with negative numbers. So I came up with this tool to help make dealing with positives less of a mystery. Plus, I found that always asking "ok, which number's absolute value is greater? Ok, your answer will take that sign. Now subtract the absolute values..." (you get the idea) was WAY too much to say every time!
Your videos are awesome! I see they're from TeacherTube. Is YouTube blocked at your school, too?
ReplyDeleteYour personality rules for multiplying are superb. One of my students had told me about something he learned, that "good things (+) happen to bad people (-) and that's bad (-).", etc, but the party reference is more relevant to high schoolers! haha!
As a teacher, I have found negative numbers, especially addind and subtracting them, to be a huge stumbling block. I came up with a tool for adding integers of opposite signs, (ie: -12+7 or 7-12) that gives kids a manipulative to hold and that makes this abstract concept more concrete.
You may find my tool useful. I found for myself, even though I teach 11th grade, the most mistakes my students make are with negative numbers. So I came up with this tool to help make dealing with positives less of a mystery. Plus, I found that always asking "ok, which number's absolute value is greater? Ok, your answer will take that sign. Now subtract the absolute values..." (you get the idea) was WAY too much to say every time!