Interactive Maths Resources: VELS Levels 3-4 (this site has moved to onlinemaths.globalteacher.org.au)

Pave borders around recatangular areas of lawn. Work out how many pavers are needed for any size lawn. Practical problem that involves area and perimeter.

http://www.ngfl-cymru.org.uk/vtc/ngfl/maths/cynnal/slabs/saesneg/paving_slabs.swf

A tool to teach students how to find the area of rectangles using the formula, length x width. Students are able to drag squares into the rectangle to check their answers.

http://www.freewebtown.com/weddell/mw/shape/area/area.swf

A tool to teach perimeter and area. Show how shapes with the same area can have different perimeters.

http://www.shodor.org/interactivate/activities/PerimeterExplorer/

This activity demonstrates how to measure area and perimeter.

http://www.bgfl.org/bgfl/custom/resources_ftp/client_ftp/ks2/maths/perimeter_and_area/index.html

Find the area of rectangles on a grid. Explore how the formula works for finding a rectangle’s area. First, estimate the area of a chosen rectangle or compound rectangular shape on a grid. Second, work out the correct formula for finding area by placing rows and columns of squares inside the rectangles. Then, compare the actual area of the original shape with your first estimate. Practise applying the formula directly to a range of rectangular shapes. Includes finding the area of: 1. Rectangles 2. Polygons made up of rectangles.

http://www.eduweb.vic.gov.au/dlrcontent/4c313339/index.html

Digilearn:

Select from three levels of complexity for working with polygons. Estimate the area of a randomly-generated polygon. Try counting squares on a grid to help your estimate. Cut the shape into rectangles and triangles. Use a formula to calculate the exact area for each of the simple shapes. Then find the total area for the original polygon. Try dividing the shape again into fewer pieces. This learning object is a combination of three objects in the same series.

http://www.eduweb.vic.gov.au/dlrcontent/4c313533/index.html

Digilearn:

Find the area of different types of triangles on a grid. Explore how the formula works. First, estimate the area of a chosen triangle on a grid. Next, work out the correct formula by assembling a series of triangles and rectangles. Then, compare the actual area of the triangle with your original estimate. Practise applying the formula directly to a range of triangles. This learning object is a combination of four learning objects in the same series.

http://www.eduweb.vic.gov.au/dlrcontent/4c313435/index.html