After weeks spent in my math enrichment class trying to build conceptual understanding for why you need a common denominator when adding and subtracting fractions, I had the kids write letters to someone important to them explaining the idea. Unfortunately, I don’t think all my students quite got it…
You have to find a common denomnator because, first of all, you can do math easir, quecker, faster. Also because, you will be able to do it like ms. mathinaz’s 2011 style. Next, its inportant to do this because, when you get older and go to college, you will need to do thoose in biger math proplemes. Lastly, its inportant because, you get smarter and you wont be dome.
Math is ASOME
Dear, [Social Studies Teacher]
I heard some stuff from Ms. Mathinaz and she said your having problems with why you need to have common Denomonators. Its important because so that you can add and subtract decimals. But she said I can’t tell you how but yea!
Sinceraly your student
It is important to find a common denominator, because you use them for driving cause you needed to find out how much gas you need. You might be speeding and find the way to slow down. You need it for checks to find the right amount.