The aim of this double lesson is to introduce the concept of obsolescence and its forms. In addition, historical aspects and causes will be discussed. The students are divided into three groups and learn about different forms of obsolescence by analysing the PowerPoint presentations on the different areas. Group 1 deals with planned obsolescence, condoned obsolescence and limited reparability. Group 2 analyses the characteristics of functional obsolescence, planned overconsumption and economic obsolescence. Group 3 is dedicated to the phenomenon of psychological obsolescence. To this end, they conduct a quick survey of the other groups and analyse the results. Following this group work, a film about obsolescence is shown in plenary, in which the various aspects are brought together and illustrated with examples. In preparation for the second double lesson, the pupils should research whether obsolescence is known in their family or circle of friends. They should make a note of the examples.

PCs/laptops and the PowerPoint presentations Obsolescence 1, 2 and 3 are required for this double lesson. It makes sense to use different rooms for the group work so that the groups have the opportunity to watch the films undisturbed.
A laptop and projector as well as an internet connection are required for the film presentation. Group 3 has the task of carrying out a flash survey. If the group decides to use the questions provided, a sufficient number of copies of the flash survey worksheet and the corresponding evaluation sheet should be printed out. If the students develop their own questions, a blank template is available, which should be copied in the appropriate number after the questions have been developed.

Notes:
Research in the household - who has experience of obsolescence? What has broken/been thrown away/given away recently? Why? Possibly finalise the presentation for the next lesson.

* PC/laptops
* PowerPoint presentations
* Projector
* Worksheet
* Evaluation sheet

Schridde, Stefan: Murks? No thanks!
www.murks-nein-danke.de/verein/

Schridde, Stefan (2014): Rubbish? No thanks: What we can do

Heckl, Wolfgang M. (2013): The culture of repair, Hanser