A Tiny Logic Puzzle About Truth and Lies
A small village logic puzzle shows why careful reasoning matters. With 100 villagers each giving a different answer from 1 to 100, only one answer can be true. Since …
Category: math
Teaching Kids Programming – Introduction to Combinatorial Mathematics 2 (Catalan Number)
Teaching Kids Programming: Videos on Data Structures and Algorithms Introduction to Combinatorial Mathematics (2): Catalan Numbers Catalan numbers are one of the most important sequences in combinatorics. They appear …
Understanding the Sigma Function: Divisors, Multiplicativity, and the Formula
Understanding the Sigma Function: Divisors, Multiplicativity, and the Formula Understanding the Sigma Function: From Divisors to a Powerful Closed Formula Why the Sigma Function Is Multiplicative: A Step-by-Step Derivation …
Teaching Kids Programming – Introduction to Combinatorial Mathematics 1 (Pascal Triangle/Binomial)
November 15, 2025
algorithms, Combination, math, Permutation, teaching kids programming, tutorial, youtube video
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Teaching Kids Programming: Videos on Data Structures and Algorithms Introduction to Math Combination Combinations count the ways to choose items when order does not matter. This guide builds intuition …
Teaching Kids Programming – Two Ways to Prove Square Root of Two is Irrational (proof by contradiction and geometric infinite descent)
Teaching Kids Programming: Videos on Data Structures and Algorithms How to Prove √2 Is Irrational — Two Methods (Proof by Contradiction & Geometric Infinite Descent) Introduction The statement “√2 …