This lesson is about area and perimeter (translation of the space 'Bouw een Tuinhuis voor Stephen en Marie'). By helping Stephen and Marie design and build a garden house, you will learn to calculate area and perimeter.

The lesson starts with an introduction of Stephen and Marie. Afterwards, hypotheses (expectations) will be made about how long/how large the garden house can be that they want to build. The hypothesis is tested in an online lab about area and perimeter. Finally, it will be concluded how long Stephen's garden house can be and how large Marie's garden house can be.

This online lesson was translated from Dutch with the help of Evelien Mulder.