Questions tagged [math-puzzle]

Questions related to small scale mathematical questions that are often pursued for recreation purposes and require novel (to the participant) and compelling problem solving approaches.

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44
votes
22answers
16k views

How to explain Monty Hall problem when they just don't get it

Talking to some friends, I was asked to explain the answer to the Monty Hall problem (see also here;) .... they were having some trouble because whoever explained it to them didn't do a very good job. ...
2
votes
3answers
131 views

Suggestion and advices [closed]

In my country the education system is very expensive, so I’m considering starting an organization to teach lower-income students for free. In particular, to motivate them into the science fields. So, ...
1
vote
0answers
89 views

What's the age recomendation for my app?

I've developed an android math game called MathLab that has started to gain popularity. It's a simple fill-in-the-grid puzzle with variable cell sizes and locking cells. My daughter's math teacher got ...
6
votes
1answer
159 views

Easy and good book on combinatorial problems

I am searching for a book on combinatorics and/or mathematical puzzles for very beginners in easy English. The book should not contain detail mathematical expressions, will contain easy understanding ...
19
votes
16answers
3k views

Tricks for computing things in your head

There are quite a lot of tricks/shortcuts enabling doing calculations efficiently in your head. (One of them that came to me today is the "squaring a number ending with a 5" trick I wrote about in ...
4
votes
2answers
150 views

Does solving crosswords help with recall of definitions?

I have an idea to help with self-study and recall of definitions. It is to create a crossword where the clues are the definitions and the words to solve are the concepts being defined. I haven't ...
16
votes
4answers
958 views

Explaining the “siblings” paradox

This is a question I originally posted on Math Stackexchange. I've just seen a very good discussion of Monty Hall problem, and someone mentioned the "siblings" paradox. I've had some success ...
12
votes
3answers
1k views

Challenge questions for extremely bright kids

I suppose this is the place for my questions as much as any place is: I'm a math student coming on my 3rd year of undergrad, and I am working as a counselor at a Summer math camp. The camp is for 12-...
5
votes
1answer
120 views

Logic/Mathematics problems for training

Where I live, there is this competition called the "Känguru Wettbewerb" (german), in English, that would be "Kangaroo Competition". This is a mathematics competition where the goal is to solve ...
10
votes
4answers
1k views

Examples of Good Mathematical Games for a Mathematical Olympic

As a crazy idea in a coffee break after a boring lecture I suggested my students and colleges that we can have some fun in our department by participating in a "Mathematical Olympic Games". They ...
6
votes
2answers
533 views

Puzzles for Logic Courses featuring propositional logic and set theory?

Puzzles are interesting form of exercises. They help students to learn the teaching material in a funny way. Particularly in logic, puzzles could be very useful to show the complexity of the subject. ...
11
votes
3answers
399 views

Playful problems in mathematics

This answer describes an analogy between finite state machines and mazes. This allows for some playful exercises, like Draw a representation of a word accepted by the following automaton... which ...
6
votes
4answers
442 views

Are puzzles a good way to interest pre-college students?

Nothing more quickly disspitates the myth that most people aren't interested in math than hitting them with a good puzzle and watching the instinctive human urge to solve it get to work. To be fair, ...