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Class case study: Effects of silage on a rural stream



Middle Primary



Nature of Science
Living World

Nature of Technology
Technological Practice
Technological Knowledge


Two Year 4 classes investigated silage and the possible effects of run-off on a small rural stream as part of a biotechnology unit.


This class case study investigates the effectiveness of the teaching unit plan Effects of silage on a rural stream

The teachers used a biotechnology topic that was real and meaningful for the students, in a context with which students were familiar. It was also important that the topic was challenging, engaging and included an opportunity for learning in the area of biotechnology appropriate to the age of the students.


Silage, pollution, waterways, farming, investigation, environmental impact.


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