Difference between "Introduction to classes" and "Classes" (in Unit 11)


Hi everyone,

Today I started at Codecademey and followed the 'Introduction to classes' course for Python. I assumed that the next course, called 'Classes' was a follow up course that built on to the gained knowledge in the introduction to classes course. However, they looked very similar and I was able to finish some of the final lessons of the course. Are these two courses really complementary or are they just fulfilling the same function?