Math · ScaleVISUAL DISCOVERY 10 OF 1,100
Grow Every Direction
Explorer · about 8 minutes · a little curiosity goes a long way
For grown-ups
Today’s little discovery
Scaling by k multiplies every horizontal and vertical length by k, creating k × k copies in area. A solid adds a third direction, making k³ copies.
Count copies across first, then rows.
This is a learning model. Try the take-home activity together.Voice settings
Using Heart (en-US).
Your selected voice and opening narration get ready when the page opens with Sound on. The first visit downloads a voice model (about 92 MB), which your browser can cache. No lesson text is sent to a speech service.The sample plays once and does not change the Sound on/off setting.- Wonder
- Guess
- Try it
- Discover
- Celebrate
HERE’S A LITTLE WONDER…
Why does a twice-as-wide shape cover four times the area?
A tiny tile is enlarged like a photo, equally in every direction.
No rush. Try an idea and see.