Find an anchor: how to estimate size with a reference
Every round of Size It Up gives you one thing for free: a reference with a known measurement. The whole skill is turning that reference into a ratio.
1. Name the dimension
Read both labels. If one says length and the other says height, you are comparing two different directions. That is allowed, and it is where most points are lost.
2. Ask “how many would fit?”
Picture the reference stacked, or laid end to end, along the target. Two buses along a blue whale? Three? A ratio of 2 or 3 is a far easier number to hold in your head than a measurement, and the board does the arithmetic for you.
3. Convert, then adjust once
Multiply the reference measurement by your ratio and compare it with the estimate shown under the board. Make one deliberate correction, bigger or smaller, then lock in. Fiddling endlessly rarely helps.
4. Learn from the reveal
The board keeps your silhouette beside the correctly sized one. If you were far off, decide which part failed: the ratio, the unit, or your mental image of the object. Carry that into the next round.