Combining and translating between representations

Diagrams are typically presented with other representations. Traditionally these representations have been textual, but new technology is allowing diagrams to be combined with many other representations. Research is presented that suggests that multiple (graphical and propositional) representations can improve children´s understanding of estimation. Using a measure of representational co-ordination that predicts learning outcomes, we have found that improvement in estimation depends on the extent that learners recognise similarity between representations