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Tag: logic

Flawed Logic

In his State of the Union speech on Tuesday, President Obama addressed education reform, including this statement about teachers.

Teachers matter. So instead of bashing them, or defending the status quo, let’s offer schools a deal. Give them the resources to keep good teachers on the job, and reward the best ones. In return, grant schools flexibility: To teach with creativity and passion; to stop teaching to the test; and to replace teachers who just aren’t helping kids learn.

In the Post’s Answer Sheet blog, a veteran educator points out a huge logical flaw in what the President had to say.

The second problem is a glaring contradiction, a logical flaw that is huge even though it has been overlooked by almost every journalist apparently too polite to challenge the administration on it. If you do not wish teachers to teach to the test, if you want them to be passionate and creative, then how can you insist that their performance be measured by the use of test scores?

You cannot have it both ways. You cannot tell teachers to be creative, you cannot pretend you are “flexible,” when you mandate the use of test scores for teacher and principal evaluations, and continue to use them as the basis by which schools are condemned as failures. [emphasis mine]

I suspect the President, and many other education reform “leaders”, will continue to miss the disconnect between what they say and what they do.

They will produce even more lofty speech about the importance of teachers, while still demonizing the profession and implementing policies that marginalize the practice of teaching.

Feeling the Numbers

Which price is better: $29.99 or $30?

Most people, if they take the time to think, would say the two are pretty much the same.

However, in an interesting article at the BBC, marketing researchers say that shoppers make those price comparisons emotionally rather than logically.

One theory is consumers just aren’t up to the maths. Dr Jane Price, lecturer in psychology at the University of Glamorgan, says we “tend to put numbers in categories like ‘under £5’ or ‘under £6’ – rather than them representing a value. Shoppers are aware of what is going on, but don’t respond to it because they don’t think logically about how close numbers are – such as £99.99 and £100.”

She thinks shoppers tend to focus on the big denomination – which the pound sign draws the eye to – rather than the smaller denomination: the pence. There is also the emotional incentive – people like to feel they are getting better value for money.

I wonder if there’s any connection between these feelings and people holding on to the concept that buying more lottery tickets with the same “lucky” numbers will increase the odds of winning.

Is this pricing philosophy related to the illogic behind adding 9/10 of a cent to per gallon gas prices?

Anyway, then there’s also the fact that many people seemingly don’t even care about the pence at all.

For consumers, the saving is minimal and the copper coins they receive as change when paying with a note seem to be more of a hassle than a benefit – in 2005, Britons discarded or stashed away £133m [about $265 million] in unwanted coppers, according to Virgin Money.

Virgin Money? Is there a business that Richard Branson isn’t involved in?

I think I read somewhere that the cost of making a US penny is more than the coin is worth.

Man! This post is even more rambling and pointless than normal. :-)

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