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Triple A Learning IB Blogs

April 13, 2010

Human evolution

Filed under: Biology — Tags: , — Stephen @ 9:42 pm

If you have not seen the “…made easy” series of Youtube videos then you must.

They are interesting, informative and helpful in reviewing the topics of Evolution (general) and Human evolution.

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March 29, 2010

NATIONAL DNA DAY – APRIL 23rd

National DNA Day is a unique day when students, teachers and the public can learn more about genetics and genomics! The day commemorates the completion of the Human Genome Project in April 2003, and the discovery of DNA’s double helix.

It presents an excellent opportunity for Grade 12 students to review DNA / biotechnology and Grade 11 students to develop and extend their understanding of the relevant concepts.

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March 23, 2010

Practical skills required for culturing micro-organisms

Filed under: Biology — Tags: , — Stephen @ 7:43 pm

Students will learn about one of the important mechanisms by which antibiotic resistance spreads between bacteria, which should help them to understand the process of evolution. Teachers may use this practical to lead into discussions around contemporary issues in biomedicine and genetics such as the prevalence of antibiotic resistance.

Even if you’re not eligible for a free kit, you can download the accompanying notebook. It will tell you everything you need to know to do the experiment in your school.

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March 15, 2010

Is evolution responsible for our ailments?

Filed under: Biology — Tags: , — Stephen @ 5:32 am

Brains have shrunk by about 10% in the past 5,000 years. Average shoe sizes have grown four sizes for men and women since 1900, and heights are all over the map. Americans, who were among the world's tallest people in 1900, have leveled off in the past 25 years (averaging 5-foot-10 for men and 5-foot-4 for women).

Evolution, the theory goes, guarantees survival to the fittest. But can we blame evolution for some of today’s most pressing health problems, such as cancer, obesity, diabetes and cardiovascular disease?

Link to article

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