We had to build the tallest tower.... That was all we were told.
We had all sorts of problems, there was not enough play dough or ice block sticks, the play dough didn't stick well but we had a great time and we tried our best.
Then we had to have another go, this time in our groups.
This time we had enough stuff and we started building some cool towers. Then we had a chat about what makes it easier or harder - what drives our learning and what blocks our learning.