Lesson Plan 10: Sampling techniques
Sampling techniques (Page 47 of the Teacher's Pack)
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Suitable for: 11-16 years
Curriculum and learning links:
- Ecological sampling techniques, reliability
- Describe how to collect data using a quadrat
- Explain why it is important to take repeat readings when collecting scientific data
Clip 26: Cow-spotting - Liz and Dallas introduce the theory that cows align themselves with the Earth's magnetic field.
Clip 27: Cow-compass - Liz aims to prove if cows really do align themselves in a north-south direction when grazing by going cow-spotting from a helicopter.
Clip 28: Magnetic field? - Liz and Jem reveal the results of their cow alignment investigation.
Clip 29: Moo-monitor - Jem takes the cow alignment investigation to a new level with the invention of the moo-monitor to analyse the alignment of a herd of cows over a month.
Clip 30: Dr Yan on magnetic cows - Dr Yan explains the thinking behind Jem's moo-monitor - a device built to determine if cows align themselves in a north-south direction.