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Something Fishy

Here are some useful resources to help students understand the need for, and importance of, conserving fish stocks. [youtube]s3u2ZxKhPoA[/youtube] This a humorous though sad animation on the plight of Chilean Sea Bass. Here is a an exercise on determining the age of a fish used as a strategy to determine the size of commercial fish […] Find out more

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Significant figures

It is important that we express the correct number of significant figures in our calculations. Take the example below. Work through this sample calculation and post your answer: In an experiment to determine the specific heat capacity of an oil, the hydrocarbon was: Heated with an appliance rated 143W ± 1W (P) The heater supplied […] Find out more

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Is evolution responsible for our ailments?

  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 [youtube]85diEXbJBIk[/youtube] Evolution cont… A 2009 Gallup poll found that 44% of Americans believe that God created human beings in their present form […] Find out more

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Are whales the forests of the ocean?

THE GIST: Whaling may have removed as much carbon from the oceans as deforesting much of northern New England. Industrial whaling removed 90 -95 percent of many whale populations over the last 100 years. Restoring whale populations may have the added benefit of sequestering carbon. Read more   Find out more

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The home made jet engine

The ‘Whoosh bottle’ is a fantastic demo to introduce a new topic (which topic? Kinetics? Energetics?). It is very visual and once you have shown it you will really have the attention of your class! Just see what happens in the following video clip: [youtube]0aqH1JgmZ_4[/youtube] As I have previously written, it is your full responsibility […] Find out more

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Web 2.0 in the IB Classroom

Welcome to Web 2.0 in the IB Classroom blog! Web 2.0 is probably the most quickly advancing and exciting topic to blog in all of the IB programmes. The possibilities of integrating Web 2.0 into IB classroom activites are unlimited. In fact, they can almost be frightening to anyone who is just entering the world […] Find out more

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What part of ‘where no other activities are taking place’ do you not understand?

Where are you going to have your IBDP Visual Arts final exhibition? Page 21 of the visual arts guide discusses, among other things, the final examination interview, and states “The examiner may ask to see the exhibition space before beginning the interview. The viewing and discussion of the student’s work must be arranged in a […] Find out more

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Getting Started – NEW ITGS Guide

Welcome to the ITGS blog! This is an exciting time to be writing about ITGS because of the NEW Guide released in January, NEW Teacher Support Material (TSM) released in February for the NEW Paper 2 and the Project and the NEW specimen Paper 1 on the horizon. A NEW resource project was also launched […] Find out more

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Solid – Solid Phase Reactions

  Most of the reactions we carry out in the lab involve a liquid reacting with another liquid, a liquid reacting with a solid or a solid reacting with a gas. There are no solid – solid reactions. Why? (You can post your reasons below) – if you cannot think of any please contact me! […] Find out more

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TEN STEPS TO CRB HEAVEN

At this time of the year – early March for schools in the northern hemisphere – many IBDP art teachers and their students are immersed in the frenetic and angst-inducing chaos that can result from preparing the Candidate Record. Booklet. Here are ten steps that might help to cut through some of the complexities… TEN […] Find out more

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The Power (or not) of Repetition

THE POWER (OR NOT) OF REPETITION? Sometimes it seems like every art student knows of Andy Warhol, and almost every art student has at some point created a Warhol pastiche. Its good, of course, that students know of artists, but sometimes its only a superficial acquaintance and the artwork is just a flimsy one-off, weak […] Find out more

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Exothermic and Endothermic Change

Students love new trends and we have one just starting in our school that has origionated from some lessons (not mine!) on endo and exothermic reactions. The trend is handwarmers …… and it’s not even that cold! There are two types of heat changes associated with chemical reactions. Exothermic reactions (ones that give off heat […] Find out more

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My trauma generated a 7

It’s a theatrical given that harrowing experiences, involving pain and despair, often lead to stirring, intense – and wonderfully powerful – drama. Just look at all those Russians. But is the same true of IBDP Visual Arts? Well, sometimes, yes. I’m not talking about some superficial teenage moodiness, self-involvement with temporary angst and casual nihilism, […] Find out more

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Reactions of the Haloalkanes and Testing for Halide Ions

This is a good, straight forward lab that can be used to show the relative strengths of the C-Cl, C-Br and C-I bonds, the tests for the halide ions and the relative stability’s of the primary, secondary and tertiary carbocations. You will need some ethanol, 1-bromobutane, 1-chlorobutane and 1-iodobutane, 2-bromobutane and 2-bromo-2-methylpropane. To three separate […] Find out more

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Super dense inert gases

  SF6 or Sulfur Hexaflouride is a super heavy gas (Mr 146). It contains the S – F bond which is very stable (why?). This means that it is an inert gas with some unusual properties.   Can you explain what is happening in the video clip? [youtube]XjCmwuGKR6g[/youtube] Another dense gas is Xenon. A ballon […] Find out more

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Fuel Cells

Fuel cells a type of electrochemical cell. They work on the idea that one day they could replace the inefficient conversion of fuels to heat (approx 40%)  and then electricity with a more efficient (approx 80 – 85%) and cleaner way of producing electricity. Water is produced as a ‘waste’ product.   They are different […] Find out more

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Symbolism – a lost art?

In conversations with students during their interviews, they often talk about red being the ‘colour of anger’ and green being the ‘colour of envy’ – but it’s generally a rather superficial and bland version of symbolism. I was reminded of the complexity of meaning(s)  that used to be known to and employed by artists in […] Find out more

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The Good Old Days

Aaah, the sixties. Flower Power, Stop the Vietnam War, free love, and an artist could use almost anything as the brush – including naked women. Apparently the idea of painting using the form and movement of the body first came to Klein while practicing judo. “A 1960 work by the French conceptual artist Yves Klein […] Find out more

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The Atom – Clash of the Titans

The Atom is a three part documentary produced by the BBC, featuring Professor Jim Al-Khalili (who also stars in the more recent BBC productio ‘Chemistry: A Volatile History’). It was last aired in early 2008.   The series tells the story of the modern development of our modern day model of the atom. Part 1 […] Find out more

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An RNA world

Doubts persist to the possibility of RNA being THE hereditary / genetic material that played THE key role in the creation of life on Earth. However work carried out at the University of Colorado may have shed further light on this. The findings could be a substantial step toward understanding “the very origin of Earthly […] Find out more

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