You will need:
- Small tin of non-lead based white paint
- Pen and Paper
- Gloves (don’t handle snails with your bare hands as some snails can carry parasites)
Walk through your garden and find ten garden snails
Place a small dab of paint on their shell. This is harmless to the snail
Release the snails at different places in your garden
One week later, walk around your garden to find some more snails.
Use the formula below to work out the approximate number of snails in your garden.
FOR EXAMPLE:
In the new sample if you had found twenty in the second sample snails and five having been
already marked, then you have recaptured half of your original group of ten marked snails; and
your equation would appear as follows.
So the total population must be approximately 40 snails. This answer is only a good guess, as
anything could have happened to the snails over a week!
If you wish to have a more accurate approximation, use and even larger sample.
Live remote classes with experienced distance educators
Discover >30 virtual workshops designed to engage students isolated at home.
- Direct curriculum links
- Up to 30 homes can connect together.
- Live classes – students can question & answer our educators and participate in experiments using household materials
- Simple connection via one-click connect
- Based on 10 years of distance education experience & global best practice
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Online courses for teachers & parents
– Help students learn how science really works
Mark and recapture is just one technique used by ecologists to count animal populations.
Ecologists study the relationships between animal and plant communities.
From volume and length through to statistics and trigonometry, the Working Mathematically workshop has your mathematics enrichment covered!
Get in touch with FizzicsEd to find out how we can work with your class.
Working Mathematically
Years 3 to 6
Maximum 30 students
School workshop (NSW only)
90 minutes or Full Day
Online Class Available
STEM Full Day Accelerator - Primary
Designed from real classroom experiences, this modular day helps you create consistently effective science learning that directly address the new curriculum with easily accessible and cost-effective materials.
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