Home | Lesson Archive | Year 3 Maths Archive | L2: Singapore's otters

# Fractions of quantities: L2: Singapore's otters

## Learning Objective

• We are learning how to solve problems that involve finding unit fractions (halves, thirds, quarters, fifths) of a set of objects.
• Context: otters

https://www.bbc.co.uk/programmes/p06w64vs/player

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Credit: BBC Two - Cities:Nature's New Wild

## Clip Description

Otters can be found in many countries around the world, including the UK. They have a number of features that make them well-adapted to hunting in water such as webbed feet for swimming and dense fur for warmth.

In this fascinating clip, we see a group of smooth-coated otters, who have made their home in the waterways and backstreets of Singapore. Singapore is a bustling city in Southeast Asia. What obstacles will they face, when finding their way around? Watch the clip to find out.

## Quick Number Challenge

There are 13 different species of otter in the world. Thirteen is an interesting number because it only has 2 factors. Factors are numbers that divide exactly into another number. The factors of 13 are 1 and 13 (1 x 13 = 13)

Can you think of another number with only 2 factors?