Why Does It Matter 🌱

“I can put a piece on the board” became “I need to make the piece follow the board.”

September 28, 2026

Ethan turns a mathematically constructed soccer ball and a complete soccer goal into the heart of his 2026 World Cup p5.js project—and, somewhere along the way, starts treating the code like his own.

The few minutes I have shared with dozens of families for nearly three years

From a white plastic MacBook I barely remember to 400+ Living Museum exhibits

From mysterious TCP/IP to a four-letter room code that lets a Chinese chess game cross the world

A real three-player game, one mysterious frozen hand, and the detective story of 10 3 7 6

One MacBook, an iPhone, an iPad, a tiny mailbox in the cloud—and Golden Xiangqi playing across the Internet

When a board stopped being a picture and started becoming a game

When one closed door becomes a reason to open another

Four learners, one extraordinary day, and no graduation date scheduled

A week of waiting, guessing, calling, testing—and finally, a way in

The Second Weekend Attempt to Open Leo's Learning Channel

We thought Git had already left the server. It had only left halfway.

When “perpendicular” became a word, a secant became a moving object, and a difficult problem became a lesson in how to look.

Cloud met P5JS for the first time

A teacher gave countless small acts of kindness. Decades later, her students gave her a happy old age.

A careless mistake, a 2.5-hour perfect seat, and the moment she asked her own math question

Freedom of Communication

From manually maintained pages to a museum that can grow with its learners

How a broken publish script introduced our little museum to rsync

When the teacher stopped having to obey the clock

An Einstein quote, a citizenship ceremony, and three journeys across 27 years

A tiny transformation, a big question: when does a person learn to change the structure of a problem?

Four Weeks Before Grade 9

When a child learns to satisfy expectations, saying what she actually thinks can become surprisingly difficult.

From using code to beginning to think with code

She can count to 100. But what has she discovered?

When a student stops blaming the code and starts examining how she solves problems

The flickering stars were easy. Finding the right way to think was not.

Two sisters, two very different signs that learning is becoming their own

At 60, I thought I was done playing. Then the team called.

How Ethan turned an icosahedron, three pages of mathematics, and a weird little map into a soccer ball

From “Circle Girl” to a 3D ice-cream cone—and the questions that appeared along the way

When a student starts protecting the teacher's time for harder problems

Cloud changed his family. His family changed Donald. And today, Cloud came back.

From 54 mysterious cells to a coordinate system for a Rubik's Cube

From mysterious 5ths and 4ths to elegant diagrams, playful code, and four poles in 3D

When a Homework Question Revealed Two Weeks of Missing Foundations

Ivy’s Class 1/14: From the Golden Ratio to Her First 3D Program

Enning has a wonderfully stable relationship with Khan Academy.

Enning faces mistakes with a smile—and discovers the power of abstraction

From prime numbers and fractions to mixed numbers: a long-overdue attack on a huge hole.

Two ordinary words. Two weeks of silence. Then, suddenly, Tianjing spoke.

An extra hour of struggle turns “I got it” into “I can verify it.”

A Grade-3 Khan Academy challenge reveals four forgotten foundations in a 16-year-old learner

The common denominator between a kid and Donald may be a game

When eight lines become a puzzle—and “I'll try” becomes “Is this?”

24/30, 23 WPM, two halves, a vaccine escape, and one very long class

Two hours with Enning: rebuilding foundations, taking risks, and discovering abstraction

Rhea’s last day at 小树苗 — and a little piece of paper that carried a whole classroom home.

The moment homework stopped being homework

A five-day-old programmer, a p5.js sketch, and an unexpected message from across the world

A story shared privately, remembered across generations

A student takes ownership of her own learning

“Surprise me.” — and Enning did.

Enning is good at reasoning

Five days from zero coding experience to a world of shapes, words, questions, and her own way of seeing

After a year of asking for more hours, three new children showed him why continuity matters—and gave him the courage to stop asking.

A family chose freedom. Two sisters are learning how to use it.

A four-card iOS app became a laboratory for learning how to learn.

A tiny emoji revealed a whole family

The thinking process matters more than the result.

Two days after writing her first Python line, a young creator begins learning the craft of programming.

How Cloud stopped seeing Killer Sudoku as a game that was "too hard"

The day a classroom became a community.

Two weeks after writing his very first line of code, Cloud solved a problem his teacher had never demonstrated.

Cloud's first homework that needed only one tiny idea after twelve classes.

A Waterloo contest score, a stubborn question, and the day a student discovered what mathematics really is

A teacher's quiet promise, a parent's question, and a child's new beginning

A summer project for the 2026 FIFA World Cup led Ethan and me to solve a mystery that had fascinated him for 16 years—and me for 60.

Cloud drew an entire Chinese chess board almost entirely without loops. Only in the last ten minutes did he discover why programmers invented them.

On August 1, 2026, a little girl's world expanded in three different ways. At the same time, three generations became connected by learning, gratitude, and love.

More than forty years after leaving her classroom, a student returned—not with homework, but with an invitation.

When a quarter-star became a complete star—and a student discovered that high standards can feel like kindness.

A ninety-year-old learner quietly found his place on an exhibition wall.

The first thank-you came long before the flowers.

The first question after a four-day pause wasn't "What's next?" It was "Did I pass Grade 4?"

Four days later, the most important message arrived from the person who mattered most.

A handwritten legacy from a little girl who had not yet learned how much her name would mean.

A New Year's bicycle carried two names. The third had not yet arrived.

The conversation that had never happened before.

When a father's curiosity becomes part of a child's education.

Sometimes the most beautiful lesson isn't writing code—it's reading it.

A family paused one lesson so they could begin a much longer journey together.

Sometimes the child doesn't need a harder push. He needs a different engine.

Sometimes the most important lesson happens when everyone stops talking.

When Mathematics Returned to the Family Table

When a two-year-old looked up, trusted, and climbed toward a world she had never seen before.

A 46-second window into how reasoning, imagination, and curiosity come together during genuine mathematical thinking.

A New Year's Eve in Toronto

What if the future of education isn't AI versus teachers—but a fair experiment to discover what each does best?

Sometimes the biggest difference in education isn't the curriculum. It's the time.

A conversation about university majors became a lesson about vision.

From tutoring two curious boys to reconnecting with a global AI education pioneer, nearly one decade later.

A tiny turtle triangle, a screenshot pasted ten times, and the first glimpse of a young mathematician.

A MacBook Air, a midnight realization, and a kind of trust I had never experienced before.

A 40-year mystery, an ordinary habit change, and an observation that may be worth investigating.

At 7:36 AM, a six-year burden quietly disappeared.

A forgotten app, a broken networking framework, a rescue mission across six games, and the email that finally said: In Review.

A family worried about a 19-year-old's future. Then one photograph reminded everyone of something they had almost forgotten.

Some investments compound far beyond money.

Sometimes the most important student is the parent.

Behind every message is the same hope for a child.

A tiny character transformed a physics simulation into a story.

A jump-rope girl, a typing game, and the moment learning became her own.

On her third birthday, Rhea asked a question that has puzzled human beings for centuries: Why am I this, and not that?

47 years ago, one teacher saw the light in a new student's eyes.

Sometimes forgetting a standard solution leaves room for an original one.

A puzzle meant for a student became an evening of mathematical recreation for his mother.

A seemingly simple two-player game UI revealed four independent dimensions: table position, game side, turn state, and network role.

A 30-second sketch that unexpectedly became a portrait of an entire generation.

A brief encounter, a moving circle, and a glimpse of a creative mind.

When aesthetics met mathematics, a pulley became much more than a physics project.

A moving upside-down F appeared before a square ever did

Two recursive trees, drawn by the same student one year apart

Visitor 400 arrived while two square brackets were teaching me something new.

Rhea asks for more

On her third birthday, Rhea asked a question that has puzzled human beings for centuries: Why am I this, and not that?

From near-miss reasoning to full decryption—and a single typo that changed everything

A small piece of equipment became a child's first sense of ownership, possibility, and future.

At 11 months old, a child explores a giant rib not as food, but as an object of curiosity, sound, and interaction.

An 18-second moment of shared attention between a toddler, a book, and the first shapes of mathematical intuition.

A nearly invisible highlight on a Sudoku board became a lesson in fairness, observation, and intellectual honesty.

A sixth grader discovers that precision exists both in martial arts and in code.

A handwritten card, a small plant, and the early days of settling in Toronto

When a capable student reveals an unexpected gap in elementary arithmetic.

Eight young designers. Eight completely different tanks. One shared battlefield.

From vector forms to 3D intersections — a quiet exploration of lines, planes, and motion using Desmos.

A parent’s journey from worry about gaming and learning habits to witnessing steady academic confidence and long-term growth.

Thirteen student-designed tanks rolled onto the battlefield, and children discovered that computers could be used to build, design, and engineer.

A boy on the Tibetan grassland and a sentence remembered six years later

A child’s question, an ancient paradox, and the limits of intuition

Family, learning, and the quiet infrastructure of daily care

A shared rule: no hints, no notes, only thinking

A small artwork, a moment of recovery, and a family rediscovery of joy

Great counterexample-driven problems for young learners in algebraic thinking

A family had spent years searching for answers. One evening, amid discussions of illness, cannabis, military service, and hope, a simple mathematical puzzle unexpectedly reopened a conversation.

A plotting program, a hidden bug, and two mysterious vi commands became opportunities for independent discovery.

A debugging session, a mathematical simplification, and a runaway turtle revealed how real learning actually happens.

A student who questions, experiments, and resists easy conformity reminds us that education is not about producing obedient children.

A 59-year-old competitive badminton player reveals how leg training, control, and restraint—not brute force—protect the knees and sustain long-term athletic performance.

The curator finally remembered his own eyes

Building Golden 24 for Apple Watch required more than shrinking an iPhone app. It required rethinking every interaction from the ground up.

From zero coding experience to building a playable 24 Game in iOS—where UI, logic, and user thinking met for the first time.

Golden 24, bedroom match, and the moment a system escaped its designer

Before studying patterns, Nicole decided what her world should mean.

Rhea, just over 3 years old, was climbing a slippery blue slide. Her father, Gavin, sat calmly at the top — close enough to help, but choosing not to intervene.

From a physics problem to number theory in a single lesson