how to finish 4th grade math in a month?

Do you already know 4th grade math? If so, it should be pretty easy. Otherwise, you can try watching the videos if you get stuck. Additionally, make sure you have a solid foundation before trying more advanced topics, i.e finishing 3rd grade math first and starting at the beginning of units.

If you already know the material or are very good at math, you might do fine just using the Khan Academy content.  Otherwise, I urge you to use a full 4th grade math curriculum -- as far as I can tell, the Khan Academy courses are only meant to help when people need extra examples worked through; they don't have nearly enough practice and have gaps.

@JaniceHolz , is there any online, free, or low-price material you recommend? Many people here (being young) don't have the resources to use paid sites or places to learn that require doing things like paying money, setting up subscriptions, going places, etc., and not all people have parents to ask.

DW092407

I'm no expert in what online resources there are.  I'm just someone who likes tutoring math & basic computer programming.

In much of the world, every person under 16 or 18 should have a guardian of some sort who is making sure they get an education.  If they're in school, their school should be providing a full math curriculum, not just Khan Academy. If they're being homeschooled, I think their parents or guardians are responsible to make sure they get a full math curriculum, not just Khan Academy.  If they're being unschooled, their parents or guardians are still responsible to make sure they eventually learn all the important math, even if the learning/teaching methods are radically different from mainstream.

I'm sorry I don't know more.  You could try making a separate post (here or elsewhere online) asking about free/low-price math curricula for whichever level you are at.  Or you could do an internet search.  If you are under 16 and no adults are helping you get a quality education, that sucks and is not fair.