This week I had the second lesson, with this class, where we worked on developing our descriptive algorithm. Anticipating their reluctance to work in a discussion setting, I explained that we would be working together for about 30 mins and then they would get to do some practical work.

I had written out all the descriptions from last week and cut them into pieces. I had also put down white circles on the table, on some of them I had written parameters and some were blank. The parameters I had written were expression, subject, and number of colours. We started to sort our descriptions onto the circles and of course quickly found out that we needed more parameters. They really liked doing this and ALL wanted a turn at writing on the circles. We then discovered that what we had was a Venn diagram with all the circles overlapping with each other.(which then led to a discussion about what they remembered about Venn diagrams from before and who had been in the class then. and who hadn`t..) We tried to then break down these overlaps into new parameters, but I became very unsure as to where we should go with these. When background overlaps with shape, is the new circle called background shapes? or Pattern? and isn`t pattern also a parameter. At this point a drummer started playing right outside the classroom, and all the boys immediately started to join in on air drums, so I decided that this was a good time to stop and do some practical work.

Later we tried to turn our list of parameters into a creative algorithm, and here I know I have gone wrong and jumped a few steps ahead. But... it is a starting point and by looking at it the students could see that they needed to change the colours they were making to make sure that they had several shades of each colour. As under our colour paramter we had chosen several shades of the same colour.

So I am a bit stuck about how to get this back on track, and still getting mixed up with parameters and values.

# Alexander Sokol 2011-03-01 10:33
Gillian, I guess I need to clarify a few things to be able to understand things better.
- what is the difference between the descriptive algorithm and the creative algorithm?
- do the students see this difference and how did they become aware of it?
- what exactly was your aim when speaking about Venn's diagrams in the lesson?
- was the aim of drawing the students' attention to overlapping areas to bring them to more parameters? Or was it something else?
- where exactly do you want to come to be 'back on track'? I'd be happy to help but I am not sure I am following you.
Thanks a lot for the clarification.
# Edgar Lasevich 2011-03-16 10:25