Can someone please explain why numbers ruin my life? Whole numbers are fine, but then someone came along and invented negative numbers, fractions, decimals, and much more I can list but I canâ€™t or else Iâ€™ll get a headache.

Comments

iD =(k0/2)(W/L)(1 + Î»vDS) (vGS âˆ’ vT H )^2

Those variations of numbers are necessary for applications in real life. No one really made them up, they just exist.

Thatâ€™d be like saying someone invented colon cancer.

If everyone (well, most kids) can learn it, then it shouldnâ€™t be way too hard. Youâ€™ll get the hang of it.

OMG, how come people take it so literal? The OP knows numbers werenâ€™t â€œinventedâ€, they just used that for emphasis. Please stop being smart-apples.

You should try the Khan Academy if you have trouble with math. There are hundreds of really easy to understand video tutorials on many math subjects. Itâ€™s a really great site.

Well, when I taught calculus, I told my students to use Wolfram Alpha whenever they couldnâ€™t figure out how to do the problem by hand. I told them to try figuring out the steps on the website, then write the solution in their own words, then write with help from WA next to their answer. They seemed happy to do that, and they seemed to instinctively know that if WA did it for them, they werenâ€™t exactly on top of things. Homework was not a big part of the grade, though, and if it were I think there would have been more motivation to use WA as a way to fake-it. Not sure what I would have done in that case. Iâ€™m also not sure what to do in the cases where the students view the whole class as an obstacle (like remedial math classes), except to say that I can tell when youâ€™ve done all your homework by computer (the steps are often overly detailed or technically awkward).

## Comments

iD =(k0/2)(W/L)(1 + Î»vDS) (vGS âˆ’ vT H )^2

Those variations of numbers are necessary for applications in real life. No one really made them up, they just exist.

Thatâ€™d be like saying someone invented colon cancer.

If everyone (well, most kids) can learn it, then it shouldnâ€™t be way too hard. Youâ€™ll get the hang of it.

OMG, how come people take it so literal? The OP knows numbers werenâ€™t â€œinventedâ€, they just used that for emphasis. Please stop being smart-apples.

You should try the Khan Academy if you have trouble with math. There are hundreds of really easy to understand video tutorials on many math subjects. Itâ€™s a really great site.

Well, when I taught calculus, I told my students to use Wolfram Alpha whenever they couldnâ€™t figure out how to do the problem by hand. I told them to try figuring out the steps on the website, then write the solution in their own words, then write with help from WA next to their answer. They seemed happy to do that, and they seemed to instinctively know that if WA did it for them, they werenâ€™t exactly on top of things. Homework was not a big part of the grade, though, and if it were I think there would have been more motivation to use WA as a way to fake-it. Not sure what I would have done in that case. Iâ€™m also not sure what to do in the cases where the students view the whole class as an obstacle (like remedial math classes), except to say that I can tell when youâ€™ve done all your homework by computer (the steps are often overly detailed or technically awkward).