Sorting without being told
Tip a bag of mixed candy onto the table. Nobody hands you a rulebook first. But your hands start sorting anyway: the red candies in one pile, the round candies in another.
Nobody needed to explain the rules to you. You just looked closely, and noticed which candies seemed alike. You were sorting the whole time, without even trying.
A computer can do the exact same trick with football players. Give it some numbers about each player, and it can notice "these two are alike," all by itself, with nobody telling it the rules first.
A group is a bunch of things that are alike in some way. Sorting things into groups by what they have in common is something computers are very good at.
Two numbers tell a story
Every player on a squad has two numbers this season: how many goals they scored, and how many tackles they made. Just those two numbers can tell you a lot about how someone plays.
Lots of goals and only a few tackles? That player is probably a striker, an attacker whose job is to score. Lots of tackles and only a few goals? That player is probably a defender, whose job is to stop the other team from scoring. Somewhere in between, with a bit of both? That is usually a midfielder.
Time to try it yourself. Six players are waiting below, and their numbers are the only clues you need.
Play the Game Sort the Squad
Six players are hiding below. Look at their goals and tackles, then drag each one into the group where they truly belong.
How to play
- Read each player's card. It shows their goals scored, and their tackles made.
- Drag them into Strikers, Midfielders, or Defenders, whichever fits their numbers best.
- Press "Check! ✅" once all 6 players are placed.
⚔️ Strikers
⚖️ Midfielders
🛡️ Defenders
You just sorted 6 players because you understood their numbers. Now watch a computer sort 30 players, with no labels at all, all by itself. That trick has a name: clustering.
Clustering is when a computer finds groups of things that are alike, all by itself, without anyone telling it the answer first.
Play the Game Watch the Computer Sort 30 Players
This time, you do not sort anything yourself. Press the button, and watch a computer find its own three groups, using nothing but goals and tackles.
How to play
- Look at the grid: 30 grey dots, no labels. Goals go across the bottom, tackles go up the side.
- Press "Computer, find the groups! 🧲".
- Watch the dots pull into 3 groups and get their colours.
Bonus for curious Geniuses: how does the computer measure close?
The computer needs a way to measure "close." It uses a ruler trick called distance: x stands for goals, y stands for tackles, and "player 1" and "player 2" are the two dots being compared.
A small answer means two players are close together, so the computer puts them in the same group. A big answer means they are far apart.
- A group is a bunch of things that are alike in some way.
- You can sort players by hand, just by comparing two numbers: goals and tackles.
- Clustering is when a computer finds groups by itself, with no labels at all.
- The computer decides who is "close" using distance, the same idea as measuring with a ruler.
🎮 3D Vox game: Sort the Squad
Players ride the conveyor one by one. Read the clue and drop each one in the right bin: defender or striker?
Next: turn 'will we win?' into a real percentage.