For science on earlier stage, pictures in resources for pupils have a crucial role since they connect science with personal experience of children and integrate it into their everyday word. So, pictures start with reality and go on to more and more schematic presentation of science phenomena in which only the main science ideas are extracted. Further, pupils should be motivated to do practical work, to present data in a simple graphical way, to give their own answers and opinions; this can be done with worksheets. Teachers' guide helps teachers who usually do not have much science education: it includes scientific background, concrete guidance through resources and suggestions and ideas for further work. Preparation of such materials is possible only as group work, with very much cooperation of science teachers and experts.
Examples of such materials for some topics will be presented.