4.NF.1. Explain why a fraction a/b is equivalent to a fraction (n ├ù a)/(n ├ù 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
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.
This resources is freely available to download from the archived Primary Framework site.
Drag the digit card to make the equivalent fraction.
|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.
|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.