I launched this Mag to demonstrate to my then-5-year-old son that math can be a fun and fascinating subject, rather than boring and mundane. As a child, I became drawn to math and science through reading intriguing stories, and I felt that there was a lack of similar materials available for young kids. So I decided to create a Mag to showcase the wonder of math to my son. The primary goal is not to provide children with specific math knowledge, but to immerse them in the enjoyment of math. If we can connect math with the word "fun" in our kids' minds, then we will have accomplished our objective. After all, interest is the most effective teacher.

## Seven Bridges of Königsberg

December 26, 2023

“Have you ever heard of the Seven Bridges of Königsberg?” I asked my son. He leaned in, curious. “In an old city named Königsberg, there were two islands in a river, connected to each other and the mainland by seven bridges. The townspeople had a puzzle: could you walk around the city and cross each […]

## It’s Okay to Change Your Mind

December 25, 2023

On a quiet Sunday afternoon, my son and I were relaxing together on the couch. “Hey, have you ever heard of the Monty Hall problem from ‘Let’s Make a Deal’?” I asked him, piquing his interest. With his curiosity sparked, I quickly set up our own game. I collected three boxes and discreetly placed a […]

## Birthday Paradox

July 2, 2023

Son’s birthday was approaching, and as we sat together, I decided to share with him a mind-boggling concept known as the “Birthday Paradox.” I knew it would be a fun and intriguing way to introduce him to the world of probability. “Son,” I began, “did you know that in a room with just 23 people, […]

## How Many Colors For The Map

August 14, 2022

Son was filling colors in his drawings, which reminded me of some fun in math: “Do you know how many colors are needed for a world map?” I asked son. “Many colors?” “Let me ask the question better. There are many countries in the world. In the map, we want to use different colors for […]

## Find Patterns, Solve Problems

August 14, 2022

“What’s the last digit of 18100?” I asked my son all of a sudden. “Wow, it will take some time to calculate the answer!” Son replied. “I can tell you the answer in a few seconds. So can you.” “Really?” “Yes, try it and I believe you can find the answer.” “OK! Let’s see. What’s […]

## Numbers That Stay True To Themselves

July 23, 2022

“Do you know numbers that stay true to themselves?” I asked my son. “What do you mean?” “Let me give you an example. The number 25, if you multiply it by itself, what’s the result?” “625.” “The last two digits of 625 is 25. It is where we started! The number 25 stays true to […]

## Why Do Computers Use Binary Numbers

July 16, 2022

This is the third episode of the Binary Numbers And Computers series. In Episode I, we introduced binary numbers, which are used by Computers. In Episode II, we explained why humans use decimal numbers. In this episode, we are going to dig a little deeper to see why binary numbers are so important to computers. […]

## The Most Beautiful Number

June 28, 2022

Today we are introducing the most beautiful number! Her name is … drumbeat please…  φ (Pronounced fi, to rhyme with fly) So what is φ? It’s also called the Golden ratio. It’s represented by the Greek letter phi. This is called a Golden rectangle. The ratio of its length ( c ) to width ( […]

## The Tower of Hanoi

May 28, 2022

Another fun story today! Legend has it that, on a pouring day in the nineteenth century, a French explorer entered a giant, splendid temple in Hanoi, the capital city of Vietnam. He saw three massive pillars. 64 golden disks stacked neatly on the pillars. Monks were busy moving the disks from one pillar to another. […]

## Why Do We Use Decimal Numbers

June 12, 2022

This is the second episode for the Binary Numbers And Computers series. Here is the previous episode. In this episode, instead of talking about binary numbers, let’s take a step back and first look at decimal numbers – the numbers we use everyday. Numeral systems We introduced binary numbers in our previous episode. Binary number […]