91 LEARNING OBJECTIVES Understand the basic concepts of topology in the field of mathematics and practice its most famous phenomenon, the Möbius strip. ART EXPRESSIOSIONS/VISUAL FORMS USED Self-portraits, especially Self-portrait 1915 of Finnish artist Helene Schjerfbeck https://www.kansallisgalleria.fi/fi/object/399658 SPECIAL REQUIREMENTS Paper, scissors, tape, pencil. MOTIVATIONAL STAGE TITLE OF THE LESSON Möbius strip ISSUE/PROBLEM (society issue, issue that is seen relevant from pupils’ perspective, issue linked to some nature phenomenon or phenomenon from pupils’ everyday life) Möbius realized in the 19th century that it is possible to create a surface with only one side and one edge. This has been utilized in industry, for example. Conveyor belts are often designed in the shape of a Möbius strip so that their surface does not wear only on one side. Test the phenomena hands-on. INVESTIGATIONAL STAGE
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