Investigation planning - Tom Good's bean experiment

O.K. this shows my age but don’t knock it. Watch the video clip and see how not to do an investigation. Poor Tom does so much wrong but this is a good stimulus for discussion. I use this lesson every year with my new classes. I have had other staff thinking that the clip is too old and will not appeal to today’s students. But when they have seen it used in a lesson they admit that it is effective. If you introduce it as ‘retro’ and explain the use of ‘canned’ laughter in 1970’s comedy most students just accept it.
They (and some of you) may need a bit of background to the TV series. Basically Tom and Barbara Good have given up modern technology and are trying to live off the land by growing their own food in their garden. Predictably this regularly fails and they have to be helped by their next door neighbours.