This week, we learned about finding the greatest common factor, least common multiple, and prime factorization. I remember this stuff from middle school and I remember hating it, but I think teaching it will be a lot easier. The factor trees that we did were always the easiest way for me to find out what the prime factorization is, but I learned tonight that you can do more things with it. I looked on youtube for videos of finding the gcf and lcm, and I found a couple of really cool videos that I think would be useful for elementary students. One of them is using a Venn Diagram to find gcf and lcm, and the other one is called "prime birthday cake factorization," which I think kids would like (who doesn't like cake :D )
Birthday Cake
GCF, LCM Venn Diagram
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