John Moser

1. Общност
2. General Khan Academy Questions
3. Restarting Course Challenge/Unit Test

Can confirm, not on course challenge.  Very annoying writing the first question on the course challenge down on paper correctly then entering it wrong!  Math r hard.

1. Общност
2. News and Updates from Khan Academy
3. Update: Simplified cards before and after exercises, quizzes, unit tests, and course challenges!

Removing all the skill level changes and other information, to me, caused a serious drop in interest.  I don't feel excited about practicing; it's now a chore.  It just says "blah, you practiced." ...

1. Общност
2. Content Requests and Feedback
3. Which calculus class comes after pre-calculus?

Differential calculus, then Integral calculus.  Khan Academy has like 5 different Calc 1 courses, so it's confusing. Calculus AB/BC will not prepare you for…anything.  Well, except Calc 1 in colleg...

1. Общност
2. Content Requests and Feedback
3. Newton - Raphson method lesson is in Khan academy?

It's a computer division algorithm that's fairly fast, problem being charging up the look-up table is slow, and you need to complete the q-digit lookup before you can start adding, multiplying, and...

1. Общност
2. Content Requests and Feedback
3. Newton - Raphson method lesson is in Khan academy?

Wait until you see Sweeny-Robertson-Tocher division. I actually figured out how to do it without a look-up table—a 60-year-old problem everyone's been trying to solve, took me 2 hours, they were th...

1. Общност
2. Content Requests and Feedback
3. New Course Suggestion - Intellectual Property

Can you put the name of the course in the subject line so people can see what it is without opening the post?

1. Общност
2. News and Updates from Khan Academy
3. Update: Simplified cards before and after exercises, quizzes, unit tests, and course challenges!

It's a technically-correct analogy and helps people understand subtle psychological impacts of the type of feedback given which is non-obvious. I often liken things that are weaponizable to the wea...

1. Общност
2. Content Requests and Feedback
3. Use anzan and other high-tech math methods

Think about these numbers:  2.00 and 0.04     The problem is merely 2 / 4. 4 isn't a factor of 2; the next digit is 0, thus 20 / 4.  We know that's 5 (multiplication table). The 2 was two columns l...

1. Общност
2. Content Requests and Feedback
3. Use anzan and other high-tech math methods

I've thought about this more, and considered a rough curriculum for absolute early math—the earliest, learning counting and basic arithmetic.  Roughly: First introduction to Counting is a brief e...

1. Общност
2. Content Requests and Feedback
3. Use anzan and other high-tech math methods

Sure, but how well can you do it?  Single-digit addition? How about keeping up with third graders?  There's a video out there of kids playing word games while paying little attention to the computa...