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Averaging two questions per topic and taking one minute per question, that's 780 minutes and you're done in 13 hours. Let's use some math to figure it out! Right now (Jan 1, 2015), there are 926 math exercises on Khan and 536 of them are for grades K-8.
Right now (Jan 1, 2015), there are 926 math exercises on Khan and 536 of them are for grades K-8. So let's assume we're talking about the remaining 390 exercises, Algebra through Integral Calculus.
I'm not sure there is any way to approximate all the various courses on KA, some are rather long, others are much shorter. Other factors would also come into play as to the length of completion, such as time allotted per day, comprehension of the material, etc. Maybe you could try to do the first section, and use that as an approximation...?
There used to be, only in Math section, 2171 videos and they were 11 days 20 hours 38 min long. We can round it to 12 days to ease calculation. That means 284 hours straight without exercises. If you watch 4 hours everyday, ignoring the exercises, that will take you 71 days.
Averaging two questions per topic and taking one minute per question, that's 780 minutes and you're done in 13 hours.
geometry is fairly easy, but i would advise you to take your time on algebra 1 since many of the concepts are built on in algebra 2. it would take you about 9 months if you're not motivated, 6-7 months if you are and can put an hour or two in a day, since classes usually only are an hour or so.
Khan's Geometry content offers some very helpful formative skill assessments. Because manipulating figures is so important in geometry, the ability to do this on-screen is incredibly valuable. For example, “Rotating polygons 180 degrees about their center” starts with the figures already on the screen.
As you practice skills and answer questions, your mastery level for each skill will go up, if you answered correctly, or down, if you miss questions. If you want to make progress more quickly, try a Mastery challenge. Mastery challenges allow you to strengthen the skills you've already practiced in just six questions.
We recommend starting at your grade level and doing 1-2 practice sets per day (or 10 practice sets per week). This should take about 10-20 minutes per day. If you find it difficult, completely okay to start at an earlier grade level.
Geometry has less math in it than algebra, and the math that is required is less complicated. However, Geometry also requires you to memorize a lot of rules and formulas, which can be more difficult than basic algebra for some people.
Geometry is a branch of mathematics, its very challenging for many students. Geometry is the study of shapes and their properties. If you like drawing and geometrical objects, then geometry is the easiest subject.
Geometry is hard because most math doesn't teach kids spatial thinking. Instead, they need to learn geometrical concepts with ease. Proofs are a hard topic to get into, and everyone struggles with it. Kids need to understand that everyone suffers from this topic, even the most mathematically gifted ones.
Geometry is simpler than algebra 2. So if you want to look at these three courses in order of difficulty, it would be algebra 1, geometry, then algebra 2. Geometry does not use any math more complicated than the concepts learned in algebra 1.
Khan Academy math is an online math curriculum or supplement. There are videos, practice problems, and mastery challenges available to help teach math concepts. Is Khan Academy good for math? The program is pretty comprehensive, so in general, yes it is good for math.
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