Your mission: measure and compare

Start with measurements between integers and then explore daily data. Use a ruler, paper and objects from the room. This path prepares concrete ideas; the definition of real and irrational values ​​appears in the next step.

Half of the integer can be represented by 5/10 or 0,5.

Ribbon challenge

A tape measures 1,5 meter. Is it bigger or smaller than a 2 meter ribbon? How long does it take to get to 2?

Check out the discovery

It's smaller. 0,5 meter is missing, because 1,5 + 0,5 = 2.

To move forward: explain where 1,5 lies between 1 and 2 using a drawing.