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Knee deep: Designing and constructing a water pond
Designed for children 9-12 years old.
The lessons in this unit are:
Lesson 1: The teacher introduces the context for the engineering problem by reading a short story: a big shopping center will be built in place of a park. This park has a beautiful pond with frogs and other animals. Why don’t build a pond in the school garden to save the frogs? Pupils discover what is the main problem facing the project.
Lesson 2: Pupils investigate the different components of soil and determine which are less permeable. They investigate everyday materials to discover which of them are impermeable.
Lesson 3:Pupils apply the engineering design process to solve the problem. Pupils design a model of the pond: they choose the most suitable material to use for the bottom of the pond avoiding water seeping through the material. They make a model of the pond.
Lesson 4:The teacher and the pupils evaluate the models and consider how the science knowledge is was developed and applied to solve the problem. Pupils compare the different scale models created, propose possible improvements and think about how to organize the work to create a real pond in the school garden.The teacher and pupils consider how they used the engineering design process to solve the problem.