In the last few weeks, I have had to work with at leat 2 supply teachers who, each time, have openly admitted to me that they wouldn't be able to deliver the lesson planned by the class teacher. The first one was a secondary science teacher (NQT) who said she did not know how to explain the grid method in numeracy. She looked completely lost and just stood there. I offered to do the lesson which she gladly accepted. On another occasion (yesterday) the lesson involved the children designing their own loop card game. Again the supply was secondary trained, this time in drama and music. She looked panicky and said she had not idea what the game was about ! As this activity was for the Y5s in the class, I led the lesson whilst she supervised the Y6s who were doing something else.
Although I felt pleased that I could easily step in, I felt irritated that these teachers are paid a lot more than me and are not able to do their job!

I intend to discuss the matter with my line manager next week.
Has anybody been in the same situation ?