Persuasive argument: Best car/Document: Difference between revisions

This type of investigation will need a significant amount of structure for the youngest children with less as they get older and are more used to conducting this kind of investigation independently.  Either the children are presented with a clear set of instructions with targeted decisions left open to them or the amount of time given to them to develop their method, test it and then conduct the investigation must be increased.  If children are working in groups but are to compare data then it is suggested that a single method is agreed upon in the first instance and changes are made collectively.

When using a random collection of toy cars children in key stage 2 should identify that they may be unable to make this a fair test as the variable factors influencing how far the cars can go may be too many. In key stage 2 it may be necessary to select one variable for testing such as; the type of surface travelled over, the height of the ramp, the size of wheels, the load carried, the body shape of the cars, etc.