math

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peter d

Senior Member
Location
New England
ches2443 said:
What level of math should I teach if I'm tring to bring my students to journeyman level?

A journeyman working in the field every day should be able to do voltage drop calculations, ohm's law calculations, figure out how to use multipliers on a hand or mechanical bender, and be able to calculate a service or load. None of these require anything more than basic math.

That said, knowing trig, algebra, and geometry will help a student better understand some of the more theoretical aspects of the trade, such as understanding 3 phase and all its associated calculations.
 

chris kennedy

Senior Member
Location
Miami Fla.
Occupation
60 yr old tool twisting electrician
peter d said:
A journeyman working in the field every day should be able to do voltage drop calculations, ohm's law calculations, figure out how to use multipliers on a hand or mechanical bender, and be able to calculate a service or load.
Yes they should. Not here my friend.
 

bphgravity

Senior Member
Location
Florida
Florida State approved Apprenticeship Programs are required to ensure students have at a minimum a highschool diploma / GED and can pass THE ADULT BASIC education exam with a 9th grade comprehension of math concepts.

However, most math above this level is only used for theory problems and engineering level calculations such as arc-flash analysis.

I would personally work on math that directly relates to load calculations, motor calculations, box fill, voltage drop, ampacity, ect... These are the calculations most likely to be found on exams and in the field.

For those that excel with math or are particularly interested in large and fancy equations, I would direct them to more advanced books and concepts that are more of the Master / Engineering level.
 

hardworkingstiff

Senior Member
Location
Wilmington, NC
I started the 8th grade in Va. Beach, tested into Algebra I. 6 weeks into the school year we moved to FL. They (FL school) said I could not take Algrebra because they wouldn't let 8th graders do that. :rolleyes:

I was glad to get back to Va. Beach for the 9th grade, but..... I was a year behind all my old friends when it came to math.:mad:
 

emahler

Senior Member
teach them basic economics too...

teach them the difference between the rate they see and the rate they actually get (including burden, benes, vacation, etc) and how it relates to the amount of work they produce.

teach them that they can't get $50/hr in total compensation and only generate $350/day in revenue...

i know journeymen who know all the formulas, theories, etc...yet they don't make the company money...
 

wireman71

Senior Member
"Tape measure" math is probably more useful than any algebra or trig ever will be to a electrician.. I for one welcome the metric system but don't have high hopes of it becoming standard any time soon. Standard system is a pia to think in. Need to be able to do some basic algebra for ohms law stuff.
 
L

Lxnxjxhx

Guest
yet they don't make the company money

yet they don't make the company money

At a high school reunion, the only millionaire was the only one who didn't go to college. He noticed one day that his apt. was dirty, he hired a cleaning lady, and soon he had his own business cleaning commercial buildings.

Maybe if you don't depend on education, you need to depend on your own wits, and this serves some people very well.

There are "players", the movers and the shakers, and then there are workers. The players can always hire workers if they actually need to know something or do something.

I guess the players are curious about how people "work" and the workers are curious about how things work. Players make people do what they want them to, and workers make things do what they want them to.
 
ches2443 said:
Thanks for the good feedback. Does anyone have any recommendation for a math textbooks that would serve well for student learning to be journeymen.

Tell them to buy a copy of an "Ugly's".

Aside from all the other useful info in it there are all sorts of real life situational mathematical formulas that they should be able to understand.

You can use it as a guide to teach them from by substituting known/given factors and having them solve for solutions.

Have them describe a job they are or have worked on and come up with some calcs for it.
 
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