Monday, September 30, 2013

LCM (Least Common Multiple)

Alright, we've done the GCF (greatest common factor) and with the birthday cake method it was faster and not as many people struggled.  Some are still learning and we'll review a bunch on Thursday before Friday's test.

Today we introduced and practiced LCM (least common multiple) this is where you list a bunch of multiples of two or three different numbers and then find the smallest one.  Thanks to the same lady who did the birthday cake we have a faster way as well.  Here's the video:


Parent communication option: Ask your child how to find the LCM, and ask them to tell you the difference between GCF and LCM.

Family Game option: Make up two or three numbers and have members race and compare answers, if a  race is too competitive you can set a timer for an amount of time and then just compare answers and all right answers get points.  

Tomorrow we review addition of fractions and lead into multiplication and division of fractions next week.  

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