Secondly, there were indications that students were expected to discuss mathematics at
home. For example, during his first lesson, after discussing the results of a test completed the
previous week, Antti instructed students to “return your paper tomorrow with a signature
showing your parents know how the test went”. More significantly, during his second lesson,
Janne instructed students to mark three arbitrary points and connect them with straight lines.
Joona, having placed his points in a straight line, was unable to identify a shape. Janne insisted
that Joona should work out why this was the case, which led to the following;