Measuring

We're doing lots of measuring in class, getting used to use the balancing scales and also measuring liquids in containers.

 

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.

Old Weighing Scales

Act 1

Watch the video

Act 2

The weighing scales:

 The scale:

Act 3

Watch the video:

An old old balance

Act 1

What a great way to help us learn about the past, bringing in your great-granddad's scales!

Watch this video:

What do you notice? What do you wonder?

Act 2

The scales are set to balance when the pan weights 50 grams. (That's 1¾ ounces.)

Just moving the weight for a moment, so you can see the 50:

How many pattern block squares would you estimate would balance the scales with the weight on 50 grams?

Act 3

Watch the video:



Picture below: