The new IB Diploma Maths syllabus

All IB Diploma students have to follow a maths course at either standard or higher level. Until now, there were three choices: Maths HL, a tough(ish) course for good mathematicians; Maths SL, better for those who didn't want the standard of maths required at the higher level, but still needed, or enjoyed, a course with a reasonable level of mathematical content; and Maths Studies SL, for those, frankly, who weren't mathematically orientated, and which contained topics such as financial maths ...

Being human: how the drama genre means everything

"Meanwhile I want to go on talking to you as freely and intimately about what we live for and die for as if I knew you better than anyone else whom you know." English teachers want to open your eyes to what it means to be human and so do playwrights. Nowhere is the interaction between text, audience and purpose more immediate than the theatre. During your two years you may well be studying drama and, I recommend seeing any live theatre. The house lights down, ...

“Raising awareness of world issues” – The pitfalls (Concepts and Exhibition)

Conceptually speaking, the trouble with 'raising awareness' of world issues in your visual arts exhibition is that in most cases, awareness has already been raised, and examiners will probably have seen your video of ice melting - or a person swimming with plastic bottles, or a collage made of rubbish, or a Photoshopped photo of chimneys belching smoke, or cars polluting with their exhaust fumes, or oil pouring into the ocean etc - many times before. Conceptual qualities mean you ...

Why so generous? – IA predictions

By Wednesday, July 3, 2019 No tags 0

(i.e. why are the marks awarded by teachers for the visual arts IA component – the Exhibition – sometimes wildly unrealistic?) A group of IA moderators were chatting about their experiences in the last examination session. One moderator posed the question: why are some teachers so generous with their marks? Here are some of the ideas that surfaced relating to the different issues involved. 1 MISUNDERSTANDING GLOBAL STANDARDS This is probably the biggest cause of inaccurate teacher marks. Some teachers may not understand what the ...

Philosophers and the Project of Perpetual Peace (2)

Immanuel Kant’s conception of perpetual peace took into account the propositions already developed by l’Abbé de Saint-Pierre and Rousseau while exploring new routes leading to the end of all possible conflicts between so-called “civilised nations”. His preoccupation with the subject was mooted in his early writings of the 1750’s and 60’s before finding a theoretical formulation in his ‘Idea for a Universal History with a Cosmopolitan Purpose’ in 1784 and his treatise ‘Perpetual Peace: A Philosophical Sketch’, published in 1795 ...

An Easy Mathematical Trick

Start by writing the number 1089 on a piece of paper and put it in your pocket. Now get someone to choose a three digit number where the last digit is at least 2 less than the first digit. Turn it round to form a new three digit number, then subtract it from the first one. For example, 481 − 184 = 297. Now turn the new number round to form a fourth three digit number, and add it to the third. 297 + ...

Caffeine

We all love our caffeine hit in the morning, but what is this magic ‘energy’ giving substance and is it actually good for us? The IUPAC name for caffeine is 1,3,7-Trimethylpurine-2,6-dione and the molecule has the following structure: By Vaccinationist - Own work, based on PubChem, Public Domain, https://commons.wikimedia.org/w/index.php?curid=54417143 Interestingly, you may notice that the structure is similar to adenosine and guanine (DNA purine bases) – the clue comes from the name. Caffeine is a psychoactive drug, which puts it in the same group ...

Philosophers and the Project of Perpetual Peace (1)

The idea of a project of perpetual peace between European nations was anticipated long before the six member states of the original Economic European Union signed the Treaty of Rome in March 1957. If security and stability are often guaranteed through the agency of military force, such as the Pax Romana, long-term peace requires a deeper understanding of peoples’ aspirations and a wider perspective on what states can reasonably expect to achieve through diplomatic means.  Eighteenth-century philosophers were convinced of the ...

Surrealist theatre and design

The other day I went to see a play entitled 'Bells and Spells' by Victoria Thierree Chaplin with Aurelia Thierree and Jaime Martinez where walls move, lamp shades come to life, waistcoats turn into horses' heads and a lady could sleep on top of the washing line. This was the first time for ages where the design of the production was the key focus on the piece and we were transported into a magical world of mystery and surrealism. It was ...

Hypothesis testing made easy

Carrying out a hypothesis test often causes confusion. Here's how it works. Some hypothesis tests start with a known fact, such as "25% of patients treated for a particular disease will suffer side effects." A drug company may then claim that "a new treatment reduces the number of patients suffering side effects." The original figure, the status quo, is known as the "null hypothesis" and given the symbol H0. The new claim is called the "alternative hypothesis" and given the symbol ...