Recreational Maths

Pentominoes have started entering primary math textbooks. More generally, polyominoes are great for recreational math and school math. Here is how to make them and links to how they can be used.

Tangrams are popular for recreational math as well as for school math. Here are some layouts to make them from cardboards, link to (i) making a full set from one A4 sheet and (ii) various ways to use them.

This article explains couple of important properties of triangular numbers, how they can be used in puzzle solving, and how triangular numbers are related to combinations. Concepts are explained in the form of puzzles and graphical illustrations. Triangular numbers are the count of objects that can be arranged in the form of an equilateral triangle. (Just like how square number s are the count of objects that can arranged in the form of a square).

The idea behind the article is to explain how simple math concepts form the basis behind puzzles, and how they could be understood and taught in a fun way. So we can teach number system like binary or ternary system in the form of fun puzzles which are more easily grasped by the students.

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