3 students attended. One had attended last time and so had seen intro to differentiation. Two of them wanted to work through the coursework though I made it clear I couldn't answer specific questions.
I ran through quickly what was done last time and the students did some problems. This was really good because it meant that they refreshed the work done before the Easter break although it meant I didn't do very much for the observation.
Then I went through a couple of bits on the board and they did more problems.
I think they had a reasonable grasp of the topic and hopefully are well prepared for the more advanced differentiation topics next week.