D.1 Human nutrition – essential nutrients

Not all nutrients required by the body, are synthesized by the body. An example of these are the essential and non-essential amino acids. Essential amino acids are those that are not synthezied and are therefore "essential" in our diet. FYI - You do NOT need to learn the names of the essential or non-essential amino acids. Vitamins are organic compounds that are required in small amounts in order for effective metabolism. They cannot be synthesized by the body and all have ...

Goodbye Option D: Evolution II

Continuing from my last post, please see below for: D3 Human evolution D4 The Hardy–Weinberg principle D5 Phlogeny and systematics   D3 Human evolution The section starts with a section on carbon dating. I have found this activity to be an excellent inquiry based study. Perhaps use in a flipped lesson. When looking at the major anatomical features that define humans as primates I have used this link and the embedded video. Great way to start. This could possibly be followed with these videos that take ...

Goodbye Option D: Evolution

When I first started teaching the Diploma, my Head of Science at the time, enthused about Option D - Evolution unit as THE biology unit that best embodies the philosophy of the IBO (and I believe him to be right),  encapsulating the notion of commonality of all,   sharing the same common ancestors. I continued to teach option D for 18 years, and was therefore disappointed to find that the unit has now been broken up and sections removed. No more Human evolution, ...