Contributor lessons: Chubb Nests

1 - Learning Objective

Challenge Level ⭐⭐⭐

Learning Objective

We are learning how to solve a natural world problem by using and applying our skills and knowledge of area.

Useful Prior knowledge:

  • To understand how to calculate the area of a shape using the formula l x w
  • To understand how to find the area of an object inside a shape.

https://www.bbc.co.uk/programmes/p07w3ssb/player

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Credit: BBC One - Seven Worlds, One planet

Clip Description

In the Mississippi River, USA the river chub is a remarkable fish. It picks up stones with its mouth and moves them to a make a pile. These piles can be a metre high and 30 cm wide and they use them as a refuge for their eggs.

In this fascinating clip, we see the river chub in action making a rock nest with 1000’s of different size and shaped rocks. Watch the clip to find out how.

Quick Whiteboard Challenge

If a pile of stones had a diameter of 1m how many piles could fit on a stretch of river that is 30m long and 5m wide?

How many more piles could fit on a river stretch that is 40m long?