Photon
  • Member for 7 years, 1 month
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What's the best technique to do math calculations in my head?
3 votes

Adding to the proposal of BobaFret: I would first calculate the big part of the number, then the small part. For example: $$2048+1296=?$$ First do the big part: $$2000+1200=3200$$ Then the small part: ...

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Ideas for a 2 weeks project focused in polynomial functions
3 votes

You can identify polyhedra with polynomials. Let $a_0$ be the number of vertices, $a_1$ the number of edges and $a_2$ the number of faces, then the polynomial for a 3D polyhedron is $p_3(x)=-x^3+a_2x^...

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Problem based learning (PBL) for pupils with educational difficulties
2 votes

I cannot provide any research results supporting my claim, but intuitively, I'd assume that it can work out if the level of the exercises is low enough to provide success experience. For example, I ...

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Fun resources and games for advanced elementary school math students?
2 votes

I would propose Kenken (http://www.kenkenpuzzle.com). It gives you a feeling of numbers, that is: Which (prime) factors appear in which numbers.

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Lie Theory: significance and relevance to undergraduate education
2 votes

First of all let me mention that I'm a physics student and therefore cannot tell you whether Lie theory is interesting for a mathematician. Also I don't know the specific book you are referring to. ...

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How can I get a better result making math videos with a tablet?
1 votes

I use the app Xournal (with a Thinkpad X200 Tablet as hardware, currently available at about 200€ in very good used state) and get output like this: My handwriting could be better, but I think, it ...

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How to help new students accept function notation
0 votes

When identifying $y$ with $f(x)$ we implicitly consider a point $(x;y)$ lying on $f$'s graph. However, this doesn't have to be the case. Say, we take $f: x\mapsto x^2$, then the point $(x;y)=(2;f(2))=(...

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Could this visual explanation of horizontal shift be helpful ? ...( if not beautiful...)
Accepted answer
0 votes

I tried two other ways along the graphical representation you are proposing. A lookup table: In the first line note some values for $x$: -2, -1, 0, 1, 2 In the second line note the corresponding ...

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How to teach sum of fractions to students?
0 votes

I would suggest to give names to operations and objects. If you want to add two fractions, first find their common denominator. This can be the lcm but sometimes other options are more suiting (for ...

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