# 4.NF.1. Explain why a fraction a/b is equivalent to a fraction (n × a)/(n × b) by using visual fraction models, with attention to how the number and size of the parts differ even though the two fractions themselves are the same size. Use this principle to

Description Description
Equivalent Fractions

Drag the digit card to make the equivalent fraction.

VIEW
Fractions of Amounts

Click on the squares to shade the given fraction of the shape. The shape will then transform to show the equivalent fraction.

VIEW
ITP Fractions

View full screen in your browser.  This ITP allows you to divide a green strip into a number of equal parts and colour the individual parts in yellow. You can label the strip to show what proportion the coloured yellow parts are of the whole strip. This can be shown as a vulgar fraction, decimal (to 3 decimal places) or percentage. The ratio of yellow to green can also be displayed. You can create more then one strip and drag these up and down the screen to compare strips.
The ITP can be used to explore equivalence between fractions, decimals and percentages and the different representations of the same relative quantities. The equal parts on the strips can also be used to demonstrate how to calculate fractions and percentages of given amounts and to represent a horizontal bar chart. The ITP can be used to set up and solve ratio and proportion problems.

This resources is freely available to download from the archived Primary Framework site.

VIEW
Comparing Fractions & Decimals

Compare fractions with differing denominators, and compare fractions with decimals. A wide choice of levels. Use a fraction wall to help compare.

VIEW