Questions tagged [division]
For questions regarding the arithmetical operation of division. For question specifically concerning the use of fractions, please consider the (fractions) tag.
12
questions
7
votes
4
answers
1k
views
How is $\frac{a}{b}$ interpreted?
I was having a discussion with a colleague who is in the process of writing some curriculum, and we ended up having a discussion about what $\frac{a}{b}$ (with all the standard restrictions) meant. We ...
- 129
11
votes
8
answers
8k
views
Is short division taught these days and if not, why not?
tl;dr I'm interested in opinions on short division. Below I discuss my experience dealing with young children and long division versus short division. For those that don't know of it, wikiHow has a ...
- 21.3k
5
votes
4
answers
2k
views
Is there a way to extend the analogy that fractions means "x out of y" to show that fractions are also dividing?
When explaining fractions to my kids, I've used the analogy that $\frac{a}{b}$ means "you want $a$ out of every group of $b$ (of the thing you're finding a fraction of)."
E.g. $\frac{3}{4}$ ...
- 152
5
votes
4
answers
580
views
Is This Trick Helpful?
I am no professional educator; I am a student myself! But apparently I come up with useful tricks that help my younger brother do better in maths. I just want to hear your feedback, is all.
My younger ...
- 1,038
5
votes
3
answers
1k
views
Determining the first digit of the Quotient using hand long division efficiently?
For instance in the following problem:
_____
48)4368
To determine an initial 9 for the first number in the Quotient, you ...
- 133
36
votes
17
answers
10k
views
Dividing by zero
I was having a discussion with a friend and fellow mathematics teacher the other day when the topic of dividing by zero came up. She is the department head and had this in a questionnaire she gave to ...
- 31
9
votes
0
answers
354
views
Long division layout in French-speaking Switzerland
This question is addressed to those familiar with mathematics teaching in French-speaking Switzerland.
The main textbook in use in grades 3 to 5 in the canton of Vaud from 1957 to about 1972 appears ...
- 7,475
-2
votes
1
answer
130
views
How to solve the simple elementary school math issue--calculate increase rate [closed]
A company report its net profit 1,000,000 in 2000,and earned 1,100,000 in 2001,so the earning increase rate from 2000 to 2001 is as below:
...
3
votes
3
answers
237
views
What are strategies that a 10-13 year old could use to convert 6/27 into decimal notation?
Background:
I am working with 10-13 year olds.
I saw a problem which requires the students to convert $6/27$ into decimal notation. I can think of some methods, but I have not tested using any of the ...
- 3,131
12
votes
7
answers
2k
views
How to teach quick multiplication and division in head?
I recently started giving maths lessons and it seems like I am at my wits end. My own background is: I'm a masters student in physics, already did several tutorials for younger students, especially ...
- 473
11
votes
1
answer
12k
views
When and Why are different division symbols taught?
There are 4 division symbols that I have learned/taught.
Below is 18 divided by 3, shown with 4 different symbols.
This question was sparked by the comments on my answer to the question on examples ...
CommunityBot
- 1
8
votes
3
answers
2k
views
Commonly taught method divides by zero
I just saw this question and the two answers. Now I am very sure that if many teachers see these answers they would accept them. Unfortunately they are deeply flawed. The second one is clearly invalid ...
CommunityBot
- 1