How do we count the fish in the ocean? An engaging instructional activity models how to estimate fish populations with observational surveys. Class members begin by studying the behavior of fish on the coral reef in the oceans. They then become the fish and take turns being the diving scientists and collect data about the fish population. Using all the data, the group calculates the mean and standard deviation to predict the actual fish population.

Concepts

population data, censuses, surveys

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Additional Tags

science

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Instructional Ideas

• Work with other teachers to combine multiple classes to increase the size of the fish population

Classroom Considerations

• Activity requires specific materials and time for set up prior to the lesson
• Pupils require laptops with Internet access to research habits of their fish

Pros

• Uses readily available materials for the activity
• Lesson guide provides step-by-step instructions throughout the lesson

Cons

• None