Showing posts with label chemistry. Show all posts
Showing posts with label chemistry. Show all posts

Tuesday, August 13, 2013

UK faces Desperate Shortage of Science and Maths Teachers

More than 100,000 secondary school pupils will be taught maths and science by teachers untrained in the subjects because of a chronic shortage of new recruits, education experts will warn today.

They predict the shortfall in expertise will discourage sixth-formers from studying the disciplines – which have been identified by the Education Secretary Michael Gove as “national strategic priorities” – at A-level.

Research by Professor John Howson of Oxford Brookes University and Datafor Education, which specialises in analysing recruitment trends, has revealed that up to 30 per cent of maths places on PGCE teacher training courses due to start in September remain unfilled, potentially leaving schools 700 recruits short next year. There is a similar problem with physics, where courses have attracted 386 fewer recruits than in 2012, while other key subject areas such as modern foreign languages and English are in a similar position.

Chris Waterman, co-author of the research, said that every missing maths teacher meant 150 secondary school pupils would be taught the subject by a non-specialist, putting 100,000 pupils at risk of receiving their education from someone who has no specialist maths training.

Professor Howson explained that when the jobs market is improving – as it appears to be at present, albeit slowly – potential candidates often turn their backs on the teaching profession.

He said: “The Government got complacent after the recession [in 2010]. Secondary school rolls were falling so we didn’t need so many teachers; we were coming to the end of the high spot of teacher retirements and we had all those people who wanted to come into teaching because there weren’t any others jobs available. The danger, though, was that this wasn’t going to go on.

“We’ve now had successive years when public sector wages have been held down, and regular stories about the problems facing the profession.  No wonder graduates in the Stem (science, technology, engineering and maths) subjects are accepting jobs elsewhere. That was always the risk.”

The way in which the top candidates are recruited has also undergone significant change in the past year, with fewer entering teacher training institutions and more being recruited directly by schools.

Professor Howson’s research is based on published recruitment figures for PGCE courses, plus data on the number of teachers recruited directly by schools from the Department for Education’s website.

It shows the number recruited in maths has fallen by 709, physics by 386, design technology by 350, chemistry by 345 and English by 343. English was one of the subjects that over-recruited last year, meaning the 343 shortfall left it just 113 teachers short of its recruitment target for 2012.

By contrast history courses have recruited 75 more candidates in 2013 than the year before, which is 170 more than 2012’s target.  The number of primary school recruits has risen from 20,760 to 23,380, coinciding with a bulge in the birth rate which has meant that the sector needs extra staff.

Brian Lightman, general secretary of the Association of School and College Leaders, said: “We’re very concerned about [the shortage of maths and science recruits]. The sort of feedback we’ve got from our heads is that recruitment directly to schools has been very, very patchy across the country.”

Under the new arrangements, schools can either recruit trainees or take on salaried staff who are aiming to switch careers, but Mr Lightman said the calibre of some of those seeking to switch was “very variable”.

“We’re seeing big gaps in recruitment – particularly in the Stem subjects,” he added.  “It’s a very big cause for concern considering their importance for the future of the economy and it means that some schools have got difficulties in filling places now.

“One would hope much of this would be about teething troubles that can be resolved.” A spokesman for the Department for Education said that new School Direct scheme – under which teachers train on the job – was “proving extremely popular”.

“By May, around 22,500 people had applied for 10,000 places and applications continue to rise,” he said.

“Of course it is right that headteachers are selective and choose only the brightest graduates best suited to their schools.”

Case study: If you haven’t mastered maths, doors close

Carol Vorderman chaired a report on SATs tests for the Education Secretary Michael Gove in 2011

You wouldn’t want me teaching your child PE or music as I’m pretty useless at both and by the same reasoning I guess you wouldn’t want your sons or daughters to be taught maths by their PE teachers. Or music teachers, or whoever.

Maths has to be taught in a very clear way and cannot be fudged. When taught brilliantly, maths is easy and beautiful. With maths you need a deeper understanding. Mathematics is not just any old subject, it is a language, it’s the language of commerce, industry, finance, science, engineering, the internet, communication and all technology. It’s such an important subject that a First World society cannot afford to teach it to any other standard than first class. Understanding it opens so many doors. But equally, if you don’t understand it, doors will slam shut. But the problems in teaching maths lie much deeper than just a shortage of trainees. Part of the problem is that almost all of those people going into primary school training, as shown by Professor Adrian Smith’s 2006 inquiry, gave up maths at 16.

In a report I chaired for Michael Gove, we found that of those children who achieved Level 4 in their SAT tests aged 11 – Level 4 is the government target – just over half went on to achieve their GCSE at grade C or better. Of those who failed to get Level 4, almost all of them failed. In other words, if you are on the mathematical scrapheap by the age of 11, there you are likely to remain. Secondary school is having little effect on the outcome for these children. My concern is that the potential shortage of qualified maths teachers at secondary level can only compound these problems.

But perhaps the biggest problem is our society’s attitude to maths. It is regarded as  “too hard for me” or “geeky”. This is very much a British malaise. We undervalue maths at our peril.

Monday, May 2, 2011

Mastering Mathematics - Fractions Are Key - Part II

In order to master mathematics, you definitely need to master fractions. These appear in every single aspect of this discipline, from algebra to calculus to engineering to related fields like physics. Fractions present a lot of trouble to students, yet most of these problems can be easily resolved if the right approach is taken. Here in Part II, we examine some other techniques necessary to master this area.

Equivalent fractions are nothing more than fractions that have the same value. Thus 1/2, 2/4, and 3/6 are all equivalent fractions. Equivalent fractions have the same value but have different numerators and denominators from the other fractions to which they are equivalent. There are infinitely many equivalent fractions to 1/2, let us say. Each of these can be derived by multiplying 1/2 by 1 in disguised form. What we mean by 1 in disguised form is a fraction which has the same numerator as denominator. Thus 2/2, 3/3, 4/4...etc. are all 1 in disguised form. Remember: 1 is the multiplicative identity, and thus no matter what we multiply by 1 does not have its value changed.

Equivalent fractions come in very handy when we add or subtract fractions, because this operation requires that we have the same denominator. Thus if adding 1/2 and 3/8, we need to convert the 1/2 into an equivalent fraction with 8 as its denominator. We simply ask ourselves what we need to multiply 2 by to get 8. The answer is easy and is 4. Thus we use 4/4, 1 in disguised form to multiply and convert 1/2 into the equivalent fraction 4/8. We can then add 4/8 and 3/8 to get 7/8.

Reducing fractions is another important aspect to mastering these numbers. Reducing fractions allows us to deal with fractions in lowest terms. This is important because in mathematics we always want our answers in the most simplified form and reducing fractions permits this. Mathematics is complicated as it is, thus providing the most simple form is always important. Could you imagine how much more complicated this field would be if we did not do this? At any rate, simplifying fractions simply requires that we factor out the GCF (Greatest Common Factor) from both numerator and denominator and canceling. The GCF is the largest factor common to both numerator and denominator. For example, 20/25 can be reduced to 4/5 because the GCF of both 20 and 25 is 5. Thus we write 20/25 = (4x5)/(5x5) and cancel the 5 to get 4/5. Similarly for 38/57, we can express this as (19x2)/(19x3) and cancel the 19 to get 2/3. Obviously, it is easier to work with smaller numbers than larger ones, as many times we use the results of one operation for further operations. Thus 2/3 is easier to work with than 38/57, and thus the reason for reducing fractions becomes evident.

Another important aspect of fractions is multiplying and dividing them. This is probably one of the easiest operations involving fractions because we need not concern ourselves with common denominators. To multiply two fractions, we simply multiply the numerators and then the denominators. It should be pointed out that we should first try to reduce the fractions so that our end result is in lowest terms. Doing this first, also simplifies the multiplications. For example, (38/57)x(20/25) is easier to do if we first reduce each fraction as mentioned above to 2/3 and 4/5, respectively. We then multiply 2x4 and 3x5 to get 8/15 as our answer, and this is in lowest terms. If you do not simplify first, you are looking at multiplying 38x20 and 57x25, which are harder multiplications than the ones we did.

Dividing fractions is really no different than multiplying them, with one exception. Before we do the multiplication, we invert the numerator and denominator of the second fraction. We then simply multiply. Thus (9/15)/(8/16) is the same as (9/15)x 16/8). Let's reduce and multiply. We have (3/5)x(2/1) = 6/5.

Mastering these techniques will give you the edge in conquering fractions. Use these articles and the techniques laid out therein to overcome any problems you might have had with these stubborn mathematical entities. You will soon realize that fractions are actually quite fun to work with.

Joe is a prolific writer of self-help and educational material and is the creator and author of over a dozen books and ebooks which have been read throughout the world. He is a former teacher of high school and college mathematics and has recently returned as a professor of mathematics at a local community college in New Jersey.

Joe propagates his Wiz Kid Teaching Philosophy through his writings and lectures and loves to turn "math-haters" into "math-lovers."

Thursday, March 31, 2011

Think and decide!

 It is time for all those students who appeared for their class X exams to put on their thinking caps and decide about their subject choices for class XI. It is a very crucial time for students. Selecting the right subject at the right time is always beneficial as it is rightly quoted “a stitch in time saves nine”. Before selecting your subjects think about your interests and explore possible fields that you may want to get into.

Students have several options if one were to talk about their subjects vis-a-vis their future careers. Some years back those students who opted for Science were considered to be aiming only for the medical field and those who took Commerce were limited to pursuing B.com and other Commerce courses. The education scenario has changed considerably. There are now ample higher education options available at hand.

If you want to get into a professional field other than medical and engineering, then do consider the Humanities and Commerce streams. While subjects like accountancy, business studies can help you get into some really exciting amazing fields in the areas of Management, Finance, Chartered Accountancy (CA) etc, subjects such as Geography, Political Science, Economics in the Arts stream pave the way for some equally exciting career options Career options such as Business administration, Hotel management , and many more are open for students from all streams, but it helps if you have studied Maths at the +2 level

Students considering the Science stream have plenty of options when it comes to the selection of subjects. The science stream is not limited to Physics, Chemistry and Biology. Biotechnology as a subject is also available in some schools at the +2 level. Moreover subjects such as Technical drawing, Mathematics and Computer are some of the other options available. While Physics and Chemistry are typically compulsory subjects in the Science Stream, you have the freedom to choose any one or any two subjects out of Mathematics, Biology, Biotechnology and Computer. Some schools also offer fine arts and physical education as options to students. Career options for the science students offer variety. Occupational Therapy; Biotechnology; Agriculture; Dairy Farming; Traditional Medicine; Genetics; Microbiology; Medicine, Horticulture and Floriculture; Aquaculture; food Processing; Marine Biology; Dentistry; Veterinary Science; Pharmacy; Physiotherapy; Home Science; Poultry Farming; Environment Science; Forestry; Zoology; Detective (forensic Science); Wildlife Science; Research; Tea Industry; Botany; Cosmetology. These are just a few options from among the several that are available.

A small piece of advice that I think can help the students in a big way - be very sure while choosing your subjects because once decided you will have to stick with them your whole life. If you are facing any confusion while selecting your subjects then you can always use the help of certain websites like www.meritnation.com that provides online facility of stream selector.

Study about a few things and look for your interest. A good choice can help you in achieving desired career. So think timely and choose wisely.