Thesis proposal is intended to provide the lesson plans, which will promote elective subject treatment of materials-wood. As a means to carry out the lesson plans we have chosen an activity day, based on project based teaching. The definition and organization of activity day is given and followed by a review of elective design and technology subjects, where the wood treatment subject is also described in detail. Different inductive teaching methods are described. Here we compare them and choose the most suitable for our case, the project based teaching, which is also described. This is followed by a review of promotions for technical subjects in economically developed countries. We describe laser technology, because the teaching preparation is composed so that the product is made with a laser cutter. This is unknown to the students and therefore interesting. The product choice is determined by criteria evaluation such as usability, coupling types, the number of flexible joints, adequacy for 6th grade students and estimated time of manufacture. The winning product are sunglasses, for which it is provided in the learning preparation that the students define the essential components, conceive the idea with taking into account certain criteria. They can also assist themselves with an office paper model. With laser cutting we cut out the components of the glasses, assemble them and finally check their functionality. With proposed lesson plan we conclude the thesis.