TJ Homeschooling: Math-Division

Showing posts with label Math-Division. Show all posts
Showing posts with label Math-Division. Show all posts

Division


Division Terms

In division, a dividend is divided by a divisor to find a quotient. If there is an amount left over, it is called the remainder. The remainder cannot be evenly divided by the divisor. (Fact Monster)





Cute Division Terms Poster - Teachers Take Out Blog
A cute color poster that shows the terms in horizonal division, fraction bar division and long division configurations.

Tip: When I have my daughter do missing number division (or multiplication) problems, I have her tell me the name of the term that was missing to give her practice identifying the terms.

Divisiblity Rules

How Can You Tell if a Number is Divisible by Another Number? Use Divisibility Rules!

Teaching Long Division

Long Division - tips and videos I've used to help teach long division

Shortcut Long Division - If you want to tear your hair out or cry teaching long division, check out this quick method that requires less writing (great for kids who have mastered the math facts or can compute quickly-----may be still frustrating for those who memorized the facts or can't computer quickly in their head)

Division Facts Practice

I like to have my kids do targeted math facts practice (working on one table at a time) Here are some helpful resources to work on just one fact table at a time.

1s

2s

3s

4s

5s

6s

7s

8s

9s

10s

11s

12s

Mixed Facts

Common Core Worksheets Mixed Facts 1s to 10s drills - 100 per page

Division Aids

Division Chart - I found this handy chart online to help my kids quickly look up division facts.





Check out my Division pinterest board for more ideas to teach and practice division:



Originally posted 11/20/18

How Can You Tell if a Number is Divisible by Another Number? Use Divisibility Rules!

Is 2,432 divisible by 2?
Is 944 divisible by 4?

Divisibility Rules can quickly tell us if a number is divisible by another number!

divisibility rule is a shorthand way of discovering whether a given number is divisible by a fixed divisor without performing the division, usually by examining its digits. (MathGoodies.com)

Here are a few divisibility printables I have made over the years:

Divisibility Rules Notebook Pages







Divisibility Rules



Of course it's been eons since I was in school, but I don't remember learning the divisibility rules so I loved when I first learned them (or perhaps relearned them) some years back with my older kids. Teaching math to my homeschoolers has really boosted my math skills too!


Short Division Method



A few years ago, we were doing division and my 10 year old hated writing. Long division problems required too much writing (in his view).

But, my son was also pretty good about computing in his head, alhamdulillah.

In anticipation of teaching division, I  had googled a few months ago to see if there was some sort of shortcut because I anticipated some frustration for us.

And I found a great video. No messy long lines of long division!
(The video had since become unavailable but I found this one which is very brief and concise)


This second video goes a little more indepth and starts off with smaller problems.




As the video presenter mentioned in the video we used a few years back, this method works best for students who can do math mentally in their head without getting too confused and who know their math facts well. (My son hadn't mastered his math facts but he was quick at computing, so this still worked)

So one day I introduced this method  After doing a few problems, I did one problem two ways--the first with traditional long division, and the second, with this method.  Then I asked my son which way he preferred and he chose the second, quicker way and we did 5 or so problems using this method (that's about all his attention span would allow for because we had already did some simple division problems right before). But, I'm happy to say, no frustration and I'm so glad I stumbled upon this new method. It cuts down drastically on the amount of writing necessary and at that point, that made a big difference for us.

Ways to Do Long Division

Long Division Method

Many of us were taught the long division method to divide large numbers. This process can be very confusing but there are all kinds of neat Long divison foldables to use to help kids remember the steps. You can find so much readily on division that I won't bother to list resources for that.

Tip: Have you students use graph paper for long division problems to keep the work in order (it's helpful for all the operations really). I found some Free Division Graph Paper  at eachers Pay Teachers - several different sizes to choose from in this pack.


Alternative Method
I used this with one of my daughters and although this one still takes up space (and sometimes more than traditional long division), this is a neat one because I think it helps students see what is going on better in division.




If your student has mastered the times tables or can compute quickly in their head, check out the quick, short division method. It was revolutionary for one of my kids.