Sometimes it's the simple things that are the best.
The amount of talking, co-operating and problem solving that goes into making these junk creations is amazing.
The kids are always ready to explain what all the different bits and pieces are and how they work.
Ask a few more questions and they'll tell you what they were thinking about as they designed their creations, the problems they had and how they solved them, and what they are planning to do next.
Here are some of the results from last Friday's Discovery Time session in Room 10 Porirua East School.