Showing posts with label Mathematics. Show all posts
Showing posts with label Mathematics. Show all posts

Wednesday 20 January 2016

The Post

"Faites attention!"   I am warned today in the village shop.
To make it easier for "les vendeurs des timbres" il y a un nouveau systeme!
BUT it is more expensive for those who are sending mail.
So I must pay attention.

Letter post from France to England or Europe:-
0 - 20g             one stamp   
22g - 100g       two stamps
101g - 250g     five stamps
251g - 500g     eight stamps
501g - 3000g  fourteen stamps

I think the shop owner said one stamp was 70 cts...
My letter weighed 111g for England... yet, if I had taken out some of the non urgent papers and sent them in another letter I would have saved the cost of one or two stamps!!!
 I will print the chart and weigh letters at home before I venture to the post office.
A few days ago I sent a wooden times table square to my grand daughter. I hadn't seen one of these in UK and thought that playing a game with it would help her see the numerical patterns. She is quite good at Maths but as Y3 the quicker she learns them by whatever means the better!
Well,  it cost me 8 stamps to post it when the item cost me about 2 euros and probably cost tuppence to make and the labourers who made it probably didn't even get a bowl of soup. (***See below)  Crazy world!  I wonder what the value of  the first penny post would be in today's economy?

THE PAST
***   When I first started teaching in 1972  the school had few resources in the very East of England.
I spent every evening making resources with the card that they supplied and any pictures from free or bought magazines and brochures etc that I could lay my hands on.  Then I had to cover them with sticky back plastic.  I spent my own money on resources too!   This was for a reception class where 30 kids roamed the room in an orderly fashion to and from individual or group educational tasks / games. It was a logistical wonder. The then Deputy Headteacher was my guru!  No wonder my marriage failed as my poor husband could not understand my enthusiasm and obsession for making new progressive teaching resources every minute that I was at home!!!!!!!!!!

Monday 26 March 2012

Mathematics


Vocabulary for Volume
One stère is equal to one cubic metre.
The derivation is from  Greek στερεός stereos which means 'solid'.
Evidently, in 1793 France began to use this terminology as a metric equivalent to the cord which is used in Canada and USA.  A cord is equivalent to 3.62 m3. I can't understand that,  so ... we'll keep with the stère (pronounced stair) which is used for measuring large quantities of firewood or other cut wood, whilst the cubic metre is used for uncut wood.


Although my woodburner is still in use, mainly for mornings and evenings, or if the weather becomes more humid, I thought I would record the quantity of logs that I have burned since the Autumn when I began with 10 stères.  Now I have about 2½ stères in store so I have burned 7½ stères.
One stère cost me about 43 euros.  
43 x 7 = 301 + 22. 
Therefore, winter fuel has cost me about 323 euros. But wait!
Divide by 6 months = 53.8 euros per month, which is about 13.50 euros per week or 1.80 euros per day.
For budgetary purposes, it makes an average for the year of 26.90 euros per month or 6.72 per week or about 1 euro per day!
Add the cost of woodburner glass cleaner products, firelighters, matches, as well as the log splitter (a 200 euros investment that does a job I would not be able to do otherwise!)  Kindling wood has been free.  I inherited a lot of old wood but most of it needs to be sawn so I will have to pay someone to do that.  I also add the cost of a monthly newspaper I subscribe to as it is used for the fire once read!
Of course, it was a relatively mild winter apart from the 3 weeks of THEBIGFREEZE so the calculations cannot be applied to any other year.  As reported earlier it was not warm outside and not warm in my house!  I do NOT have central heating!  Me THINKS...I need to budget in the cost of the electricity bill  as there were many occasions especially in THEBIGFREEZE when I just had to get some extra warmth from a free-standing radiator,  even though I was wearing a coat, hat and scarves for most of the day and night!!!!!!

These figures indicate that I could order 10 stères for next winter but it would be better if I were to order 15 stères,  as I hope to run two woodburners in my L-shaped house next winter, and IF I am brave enough to give WinterinFrance another go I could burn more and be warmer at not much greater a cost. I was cautious and careful this year.  However, it may well be the case that my new source of oak logs will be more expensive and oh if the pensionable income goes down  a re-think may have to be made.  The beauty is that logs not burnt in any winter can be stored until the following winter.
At least, for me it has has been an interesting mathematical exercise!