Menu

Hi im new :-) and fairly new to gardening :-S

Search this Thread

Previous Post

Next Post

#11

Report Post

Old

27-01-2011, 11:35 PM posted to uk.rec.gardening

Tom

Tom is offline

external usenet poster

First recorded activity by GardenBanter: Mar 2009

Posts: 67

Default

Hi im new :-) and fairly new to gardening :-S

wrote in :
In article ,
Martin wrote:

Tell us about your tricks, Nick? I am sick of supermarket tricks :-)

I did. zx8 = 8x7 = 7x(4+4) = 7x7 = 10*7-3*7 and more. Also using
factorisation, so 44x75 = 11*(4*25)*3. Make a habit of that sort
of thing, and you will soon develop your own collection.

Also, using iteration (usually binary chop or interpolation) to do
division, square and cube roots etc.

Make a habit of such tricks and you will soon develop your own
suite. But mental arithmetic is no longer taught.

Watching my daughter grow up over the past 20 years
was interesting in this regard. Yes, the rote learning
of multiplication has been "deemphasised", but she
was also taught that there are several ways to get
the right answer to arithmetic problems. This has
the advantage that examples such as yours weren't
ignored and were taught (at least in the limited
sense of examples of how to solve an specific question).

In that sense, I greatly *approve* of the "new" teaching
methods.

On the other hand, lack of knowing the
"algorithmic" techniques for long multiplication and
division mean that she wouldn't have a clue how to
start coding multiple-precision arithmetic routines

I've commented elsewhere about primary teachers not
knowing what 1+2*3 is, and on the disappearance of
calculus from GCSE/O-level maths

Share
- Share this post on
- Digg
- Del.icio.us
- Technorati
- Twitter

Reply With Quote

Reply With Quote

Thread Tools	Search this Thread
Show Printable Version	Search this Thread: Advanced Search
Display Modes
Switch to Linear Mode Switch to Hybrid Mode Threaded Mode

Posting Rules
Smilies are On [IMG] code is Off HTML code is Off Trackbacks are On Pingbacks are On Refbacks are On

Similar Threads
Thread	Thread Starter	Forum	Replies	Last Post
fairly new to roses - what are these yellow spots?	Ohioguy	Gardening	6	21-05-2016 06:44 PM
New House, New to Gardening	ChrisS	Gardening	4	21-08-2012 06:04 PM
New gardening series needs your gardening DIY disasters + dishevelled sheds	lindsayhinton	United Kingdom	0	19-05-2011 05:11 PM
Has anybody planted a fairly long hedgerow?	Ben Phlat	Gardening	4	14-12-2006 12:34 AM
New subscriber - new gardening fanatic!	Darkginger	United Kingdom	6	13-06-2003 07:08 PM

All times are GMT +1. The time now is 01:55 PM.

About Us

"It's about Gardening"

Contact Us Garden Banter Home Privacy Statement

Copyright © 2017