An interesting scale

We looked closely at this scale on an old letter scales today:

We looked at the smile-shaped number line, and made some of our own.

Questions we often ask are: What do you see? What do you notice? What do you wonder?

Here's K3G's observations and questions:

And here are K3H's:

Both classes noticed the ½.
But at first we weren't sure what this number could be between zero and one.
But in both classes someone had an idea. In K3G it was Daniel. In K3H it was Finlay. It's half!

We'll be thinking more about half next week.