Divisibility Rules Worksheet
Listen, I know this is the common refrain from ~99% of the teachers who blog, but I would really like to post more stuff to this blog.
A big part of my problem is that I like to over-explain anything I post up here. But, really, the people reading this blog are more than capable of filling in gaps. So consider this post the start of my own personal blogging initiative; I'm going to work to get more short posts up here.
First up is a worksheet on division and divisibility rules. Sometimes students just need to practice, but when they do, I try to make sure that it is not mindless. So I'll often have them only complete problems that meet a certain condition. I made this when my 5th grade students were studying whole-number division and learning about divisibility rules.
Print or download the document.
This worksheet shows a number of my common homework practices.[2]I'm talking about homework at NCTM's Innov8 conference in November. I typically provide students with answers and give them some sort of meta-task when the assignment would otherwise be rote.
October 17, 2016 @ 12:01 pm
So true - I always want to make a great blog post that I can come back too but of course I can always edit/iterate later 🙂
Love the sense making in the divisibility rules worksheet. Do you have them then formalize the rules in class perhaps?
October 17, 2016 @ 7:16 pm
I do formalize the rules in class before asking them to do this. I usually require that they learn 1,2,3,4,5,6,9, and 10. 7, 8, 11 and others are mentioned but not necessarily discussed/taught. This assignment is part of the process of learning the "rules".
I usually introduce them to this wikipedia page (https://en.wikipedia.org/wiki/Divisibility_rule#Divisibility_rules_for_numbers_1.E2.80.9330) which really piques the interest of a few kids. There is always one kid who memorizes rules for 17 or 29. I love that. Later on, they can learn how to show that they work.