Numeracy: Difference between revisions
Jump to navigation
Jump to search
No edit summary |
No edit summary |
||
| Line 1: | Line 1: | ||
=OSE Case= | |||
For OSE, numeracy refers to being quick with numbers: understanding magnitudes, orders of magnitude, back of the envelope calculations, basic physics formulas like F=Ma, sizes (like acres and square miles), distances, weights, etc. This refers to working knowledge for quantifying things to one order of magnitude: | |||
*How many square miles are there is the USA? | |||
*How many cubic meters of biochar one need to apply 1/4" of biochar per acre?.006 m * 4000 sq m = 24 cubic meters | |||
*How much does a cubic yard of soil weigh? | |||
*How many millimeters of topsoil is lost per acre if the figure is 5 tons per acre? | |||
*How much does one cubic meter of water weight? Of steel? Of rock? Wood? | |||
*Based on a 1% annual growth rate of world population, how many people are born each year? | |||
=Links= | |||
*Wikipedia definition - [http://en.wikipedia.org/wiki/Numeracy] | |||
*Metric quantities and unit conversions - [http://www.convertunits.com/SI-units.php] | *Metric quantities and unit conversions - [http://www.convertunits.com/SI-units.php] | ||
*Weight of manure - 1200-1700 lb per cubic yard, or 45-60 lb/cu ft -[http://forums.seedsavers.org/forum/gardening/soil-mulch-compost/2781-horse-manure-weight]. 62 lb wet, 55 lb dry - [http://pss.uvm.edu/vtcrops/articles/ManureCalibration.pdf] | *Weight of manure - 1200-1700 lb per cubic yard, or 45-60 lb/cu ft -[http://forums.seedsavers.org/forum/gardening/soil-mulch-compost/2781-horse-manure-weight]. 62 lb wet, 55 lb dry - [http://pss.uvm.edu/vtcrops/articles/ManureCalibration.pdf] | ||
Revision as of 18:36, 6 May 2015
OSE Case
For OSE, numeracy refers to being quick with numbers: understanding magnitudes, orders of magnitude, back of the envelope calculations, basic physics formulas like F=Ma, sizes (like acres and square miles), distances, weights, etc. This refers to working knowledge for quantifying things to one order of magnitude:
- How many square miles are there is the USA?
- How many cubic meters of biochar one need to apply 1/4" of biochar per acre?.006 m * 4000 sq m = 24 cubic meters
- How much does a cubic yard of soil weigh?
- How many millimeters of topsoil is lost per acre if the figure is 5 tons per acre?
- How much does one cubic meter of water weight? Of steel? Of rock? Wood?
- Based on a 1% annual growth rate of world population, how many people are born each year?