Clip description  Keywords  

An introduction to halfs and halving Duration: 01:25 An introduction to halfs and halving. Everyday items such as chocolate, drinks, fruit and vegetables are cut in half. 

An introduction to quarters Duration: 01:16 A problem involving quarters is presented and worked through step by step. 

An introduction to quarters (signed) Duration: 01:20 A problem involving quarters is presented and worked through step by step. 

Building a fraction wall (signed) Duration: 02:20 A fraction wall is built and used to solve two problems. 

Calculating food waste and the environmental cost Duration: 09:44 Stefan Gates finds out what happens when we waste food and how it can be avoided. At a school he joins the children for lunch and learns how to compare school dinners with packed lunches to find out which is most wasteful. 
Environment, food, waste, supermarket, vegetables, fruit, measure, measuring, save, saving, data, collect, problem, solve, solving, calculate, calculations, fraction, percentage, estimate, average, graph, chart, mean, mode, range, carbon, greenhouse.


Calculating size  scaling up and down Duration: 02:00 A model maker at Legoland describes how he changes the size of a model by scaling it up or down. 

Calculating size  scaling up and down (signed) Duration: 02:25 A model maker at Legoland describes how he changes the size of a model by scaling it up or down. 

Converting tenths to decimals Duration: 02:01 How to convert tenths to decimals, illustrated by cartoonstyle fractions being cast for a decimal drama. 

Converting tenths to decimals (signed) Duration: 02:04 How to convert tenths to decimals, illustrated by cartoonstyle fractions being cast for a decimal drama. 

Fractions  quarters and halves (signed) Duration: 01:15 An introduction to fractions focusing on halves, quarters and eighths. Pieces of sliced fruit and coloured tiles are used to illustrate the concept. 

Fractions and percentages Duration: 01:12 A maths challenge to work out fractions and percentage calculations based on seating fans at a football match. 

Fractions and percentages (signed) Duration: 01:21 A maths challenge to work out fractions and percentage calculations based on seating fans at a football match. 

Ordering fractions on a number line Duration: 02:46 A demonstration of how to order a set of fractions by converting them to fractions with a common denominator and positioning them on a number line. 

Ordering fractions on a number line (signed) Duration: 02:51 A demonstration of how to order a set of fractions by converting them to fractions with a common denominator and positioning them on a number line. 

BBC © 2014 The BBC is not responsible for the content of external sites. Read more.
This page is best viewed in an uptodate web browser with style sheets (CSS) enabled. While you will be able to view the content of this page in your current browser, you will not be able to get the full visual experience. Please consider upgrading your browser software or enabling style sheets (CSS) if you are able to do so.