Using laser spirit levels to determine whether walls and other surfaces are truly horizontal or vertical.

Explains laser classification and hazards. Describes the  lasers that are permitted in school and the range of relevant practical work. Also desribes common devices which use lasers and how they might be used in school. Finally, describes the classification and uses of modern, bright LEDs.

This is an index of the MRAT titles.

It is updated when changes are made, or MRATs added.

Changes are marked on the index.

The following document is a list of the documents and other materials you will find on the D&T website.