Inverse proportion To recognise inverse proportionality we need a different set of rules. Firstly we must note that straight-line graphs cannot show inverse relationships, so we are looking for ...

Children ranging in age from 9 to 13 years made judgments of proportion with a variety of graphical elements in 2 experiments. Younger children can be misled by irrelevant dimensions of objects used ...

Conversion graphs are used to change one unit into another. For example, changing between miles and kilometres or pounds sterling to a foreign currency. These units are directly proportional close ...