Inspired by nature | KS2 | Year 4 | Maths

Investigations & Problem-solving: Leaping Lemurs

1 - Learning Objective

Learning Objective

We are learning how to solve a natural world problem by using and applying our skills and knowledge of numberĀ (including addition of single and double digit numbers).

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Credit: BBC Two - Earth's Tropical Islands

Clip Description

Located 400 kilometres off the east coast of Africa lies the world’s fourth largest island – Madagascar. This island is home to the world’s entire lemur population. With an estimated 112 different species, lemurs (the world’s oldest primates) come in all different shapes and sizes. The mouse lemur is the smallest of all, weighing just 30 grams. The indri is the largest and weighs around 8 kilograms (that’s about the size of a human child).

Sadly, the majority of lemur species are critically endangered. This means that they could soon become extinct. The main threat to their existence is deforestation. (Madagascar has lost almost half of its forests within the last 60 years.) Other threats come from illegal hunting and global warming.

Whiteboard Number Challenge

We have learnt that there are an estimated 112 species of lemur in Madagascar.

Using the numbers 20, 40, 10, 7, 5, 3 and 2, see if you can make a target number of 112?

(You can add, subtract, multiply or divide any of the numbers above to reach this target. However, you can only use each number once!)