Th eonly dissection that they do these days are of the pigs hear, kidney and lungs. All of these are bought at the butcher's shop and have to be 'food grad' (not sure about the lungs) We can't do the eye any more because of the H & S issues post BSE. No child is ever made to do a dissection and I always set up a virtual dissection on the computer in a side room for those that opt out.
Re catching up in the secondary school, I thought it might be helpful to know what my year 10s would miss in the next two weeks. This is for Biology only, they would miss a similar amount for Physics.
Lesson 1 Review of DNA structure and the finction of the Gene. What is a mutation, what causes mutations, what is a carcinogen and what is cancer? How can mutagens be avoided? A predict , observe, explain exercise on the effects of Chernobyl on local rates of cancer for homework.
Lesson 2 How do you geneticaly modify plants and animals (they need to understand the enzymes involved and the stages). Understand that crop plants can by GM and why this is done. We will then debate the potential benefits and ethical dilemmas involved with GM. Extended home work (a week to do it) esearch the topic and write a pro and anti argument for GM crops.
Lesson 3 Adaptaion to the environment. Understand how adaptaions such as hair lenth, gills, root systems etc can help to increase the liklihood of survival in specific circumstances. They will carry out a mini practical that looks at survival and adaptation based on colour. They will then use the data they produce, pool it, and analyse it as a class. Plotting the rsults and a write up, evaluating fair test etc.
Lesson 4 Populations. Describe how competition between individulas controls population size. Describe how populations of predetor/prey are dependent on each other. Recall that inc population size leasds to inc pollution (in humans) They will watch a video on the arctic hare and do some role play looking at population flux. Draw food webs/chains. Homework on the effect of human population growth in a rural area.
The next 2 lessons grow directsly out of these and are on Evolution and artificial selection.
It will take a lot for the kids to catch this up. I have one 'free' lesson to help them with revision before they go on to do a medular examination. In case anyone thinks that I am picking 'heavy' lessons , have a look on the Edexcel website. These are from Module 2 (which is missing) but have a look at what is covered in each lesson in module 1 and 7 (both Biology)
Understand that this isn't a teacher whinge about the pressure of work. I love to teach this stuff, it is one of by 'best' areas. And it is true that some of the kids could learn this on their own. The class I'm doing this with are very bright. There are 5 kids in the class who could learn this on their own if you gave them a text book. But the rest (23) will need my help for at least part of this.
And if a primary teacher gave you what the kids would miss for two weeks , it would probably crash the server! Remember that this is 4 lessons worth of missed information for one subject only. If the kids miss two weeks they would miss 40 lessons! Now some would be PE (valuable, essential, but not so much book work). But the rest would give them a similar level of missed work.