Im not a teacher or parent doing this im a kid, so if it doesn't work, im sorry. Ok here's how i did  it, I went into my 4th grade Khan Academy dash boad where i do all my missions for 4th grade like fractions, decimals, subtraction etc. , when you're at your dash board, go left where it's grayish and says 4th Grade in big letter, at the top it should say See All 4th Grade in small letters and it should have an arrow pointing to the left, you have to click it ( not the arrow the words ), once you go to See All 4th Grade, you should come up to a page at the top in the BLUE it says 4th Grade in big letters, in the top of where it says 4th Grade, something in small letter says MATH and has an arrow pointing to the left, you click that, once you click that, you'll come up to a page, and in the blue it says MATH in big letters, if you look at that page you'll see something that says EARLY MATH, that's for pre school, if you go down you'll see that after EARLY MATH it says KINDERGARTEN , after that is 1ST GRADE, then 2ND GRADE, then 3RD GRADE, then 4TH GRADE and finally 5TH GRADE, but the grade levels only go to 8th grade, after 8th grade comes india grade levels which is CLASS 6 (india ) and the india grade level goes to CLASS 6 (india) to CLASS 8 (india) and after that comes some other thing.... Anyways I HOPED IT WORKS! It did for me.