Hi Anna,
This is a fantastic idea for a lesson. I really like the use of k’nex in it to further develop the children’s concept of the 3 dimensional design. Again, I have found that the pre teaching of group rules and maybe asking the students to draw up a group work policy in each group works very well. There is lots of scope for integration in this lesson and i think the students would find it really interesting. There are videos available online on bridge construction and what can go wrong if they are not designed properly. These could be great stimuli for the students. There is one particular video which shows Bridges swaying in the wind and it is one i have used when doing bridge construction projects with the students. well done
