There are some interesting studies about reading information via print or digital media; this paper from the

**Research in Learning Technology**journal looks specifically at educational materials and this article from

**Phys.org**summarises some of the preferences people have for different media - generally, we prefer printed media for longer, more involved reads and digital media for shorter reads. I also found

**this study**examining handwriting vs typing inputs for students when solving equations; the authors conclude that the only real difference in this scenario is the speed at which students completed the task, with typesetting algebra taking twice as long as handwriting solutions. However, I've not been able to find anything on the modelling of worked examples in Maths, so this blog post is written with the caveat that this is all personal theorising and is not research-based.

## Advantages of written examples

## 1) Less time taken to prepare lesson materials

## 2) Teacher's thought processes are more visible to students

## 3) Teacher can model layout and presentation of mathematical working

## 4) Teacher can include student input more easily

## Advantages of typed examples

## 1) More critical selection of illustrative examples

## 2) Final solution can be presented with greater clarity/use of colour

## 3) Diagrams and graphs can be incorporated more easily

**Desmos**is now pretty commonplace, but if I'm doing this I will often prepare graphs in advance rather than plot "live", as I can make sure that the graph is scaled appropriately. Diagrams or pictorial representations always look better when done digitally - for example, your standard "counters in a bag" when working with tree diagrams.