Lesson 3 Discovering your Paths Chapter 1: Introduction Chapter 2: Comparison operators Chapter 3: If statements Chapter 4: Applying your knowledge Chapter 5: Making a git commit Chapter 6: Function calls Chapter 7: Using existing functions [7.1] Built-in functions [7.2] Importing modules [7.3] The math module Chapter 8: Composition and abstraction Chapter 9: Incremental development Chapter 10: Commenting Chapter 11: Summary Chapter 7 Using existing functions Creation always involves building upon something else. Lawrence Lessig Rough estimated time needed20 mins