The possible uses of the YC-400 camera system and the CASIO projectors are being tested in lessons at selected schools. During this, teachers in all subject areas are discovering the clear advantages of the system in comparison with overhead projectors and other existing presentation systems. More examples of applications in mathematics: Compare different methods A map is projected on the wall to clarify the differences between a distance and a way. •  The map does not have to be drawn manually or copied on to a transparency but rather is simply projected on to the board from the book. •  The map on the board corresponds precisely to the illustration in the textbook. •  The pupils' concentration is directed towards the board. •  YC-400 multi-function camera system and XJ-360 data projector Discussion of homework on the board with the aid of the YC-400 camera system. •  Drawings can be shown in detail on the board which previously required a lot of work. Thanks to the CASIO products, the accessories required such as e.g. squared paper can be projected on to the board simply and quickly. •  Pupils' work can be presented spontaneously. •  The teacher can add further comments to the pupil's statements. •  The pupils become very involved in the lesson. •  YC-400 multi-functional camera system and XJ-360 data projector