Learning Paths
Each learning path is one chapter: a guided route through a topic, one small course at a time. Pick a class to see its chapters in order.
Chapter 1
Rational and Irrational Numbers, Exponents and Radicals
You have counted with 1, 2, 3, and you have used fractions and decimals. Are there numbers that are neither? Yes. The length of the diagonal of a square with a side of 1 is one of them, and no fraction can write it. In this chapter we sort the numbers into families, we meet the irrational numbers, and we place every real number on the number line. Then we learn how to add, multiply and rationalise them, and how to work with fractional powers. We use Python to see the digits.
2 courses
