The lesson has a good structure and some good activities. It does have a lot of spelling and grammar issues though and I really would have liked to have seen some links to the videos mentioned in the PowerPoint.
The powerpoint follows the reproductive organs lesson by replying to agony aunts
I have uploaded the original samy the sperm pdf. I actually changed a few of the words before reading it out to the class
This is for a 100 minute lesson, but there are two tasks which could be split over two 50 min lessons.
The Timeline Poster is one activity and the Darwin text based activity is the second activity.
The text may be too textual for low ability or low reading age students, my low reading age group had an LSA and they were ACE!