# FL CSD: CS-CS.2.4

## CodeHS Lessons

Divide a complex problem into simpler parts by using the principle of abstraction to manage complexity (i.e., by using searching and sorting as abstractions) using predefined functions and parameters, classes, and methods.

 2.6 Top Down Design and Decomposition in Karel 2.8 Abstraction 9.1 Functions and Parameters 1 9.2 Functions and Parameters 2 9.3 Functions and Parameters 3 9.13 Array Length and Looping Through Arrays
 2.6 Top Down Design and Decomposition in Karel 2.8 Abstraction 9.1 Functions and Parameters 1 9.2 Functions and Parameters 2 9.3 Functions and Parameters 3 9.13 Array Length and Looping Through Arrays
 2.6 Top Down Design and Decomposition in Karel 2.8 Abstraction 9.1 Functions and Parameters 1 9.2 Functions and Parameters 2 9.3 Functions and Parameters 3 9.13 Array Length and Looping Through Arrays
 2.6 Top Down Design and Decomposition in Karel 2.8 Abstraction 9.1 Functions and Parameters 1 9.2 Functions and Parameters 2 9.3 Functions and Parameters 3 9.13 Array Length and Looping Through Arrays
 2.6 Top Down Design and Decomposition in Karel 2.8 Abstraction 9.1 Functions and Parameters 1 9.2 Functions and Parameters 2 9.3 Functions and Parameters 3 9.13 Array Length and Looping Through Arrays
 2.6 Top Down Design and Decomposition in Karel 2.8 Abstraction 9.1 Functions and Parameters 1 9.2 Functions and Parameters 2 9.3 Functions and Parameters 3 9.13 Array Length and Looping Through Arrays
 2.6 Top Down Design and Decomposition in Karel 2.8 Abstraction 9.1 Functions and Parameters 1 9.2 Functions and Parameters 2 9.3 Functions and Parameters 3 9.13 Array Length and Looping Through Arrays
 2.6 Top Down Design and Decomposition in Karel 2.8 Abstraction 9.1 Functions and Parameters 1 9.2 Functions and Parameters 2 9.3 Functions and Parameters 3 9.13 Array Length and Looping Through Arrays
 2.6 Top Down Design and Decomposition in Karel 2.8 Abstraction 9.1 Functions and Parameters 1 9.2 Functions and Parameters 2 9.3 Functions and Parameters 3 9.13 Array Length and Looping Through Arrays
 2.6 Top Down Design and Decomposition in Karel 2.8 Abstraction 9.1 Functions and Parameters 1 9.2 Functions and Parameters 2 9.3 Functions and Parameters 3 9.13 Array Length and Looping Through Arrays
 2.6 Top Down Design and Decomposition in Karel 2.8 Abstraction 9.1 Functions and Parameters 1 9.2 Functions and Parameters 2 9.3 Functions and Parameters 3 9.13 Array Length and Looping Through Arrays
 2.6 Top Down Design and Decomposition in Karel 2.8 Abstraction 17.13 Array Length and Looping Through Arrays 17.1 Functions and Parameters 1 17.2 Functions and Parameters 2 17.3 Functions and Parameters 3
 2.6 Top Down Design and Decomposition in Karel 2.8 Abstraction 9.1 Functions and Parameters 1 9.2 Functions and Parameters 2 9.3 Functions and Parameters 3 9.13 Array Length and Looping Through Arrays
 2.6 Top Down Design and Decomposition in Karel 2.8 Abstraction 9.1 Functions and Parameters 1 9.2 Functions and Parameters 2 9.3 Functions and Parameters 3 9.14 Array Length and Looping Through Arrays
 2.6 Top Down Design and Decomposition in Karel 2.8 Abstraction 11.1 Functions and Parameters 1 11.2 Functions and Parameters 2 11.3 Functions and Parameters 3 11.13 Array Length and Looping Through Arrays
 3.6 Top Down Design and Decomposition in Karel 3.8 Abstraction 10.1 Functions and Parameters 1 10.2 Functions and Parameters 2 10.3 Functions and Parameters 3 10.13 Array Length and Looping Through Arrays
 3.6 Top Down Design and Decomposition in Karel 3.8 Abstraction 12.13 Array Length and Looping Through Arrays 12.1 Functions and Parameters 1 12.2 Functions and Parameters 2 12.3 Functions and Parameters 3
 2.6 Top Down Design and Decomposition in Karel 2.8 Abstraction
 2.6 Top Down Design and Decomposition in Karel 9.1 Functions and Parameters 1 9.2 Functions and Parameters 2 9.3 Functions and Parameters 3 12.4 Array Length and Looping Through Arrays
 2.6 Top Down Design and Decomposition in Karel 9.1 Functions and Parameters 1 9.2 Functions and Parameters 2 9.3 Functions and Parameters 3 9.13 Array Length and Looping Through Arrays
 1.6 Top Down Design and Decomposition in Karel 8.1 Functions and Parameters 1 8.2 Functions and Parameters 2 8.3 Functions and Parameters 3
 1.6 Top Down Design and Decomposition in Karel 8.1 Functions and Parameters 1 8.2 Functions and Parameters 2 8.3 Functions and Parameters 3 26.4 Array Length and Looping Through Arrays
 1.6 Top Down Design and Decomposition in Karel 7.1 Functions and Parameters 1 7.2 Functions and Parameters 2 7.3 Functions and Parameters 3 12.4 Array Length and Looping Through Arrays
 1.6 Top Down Design and Decomposition in Karel 7.1 Functions and Parameters 1 7.2 Functions and Parameters 2 7.3 Functions and Parameters 3 21.4 Array Length and Looping Through Arrays
 1.6 Top Down Design and Decomposition in Karel 7.1 Functions and Parameters 1 7.2 Functions and Parameters 2 7.3 Functions and Parameters 3 25.4 Array Length and Looping Through Arrays
 9.22 Array Length and Looping Through Arrays 9.14 Functions and Parameters 1 9.15 Functions and Parameters 2
 2.16 Functions and Parameters 1 2.17 Functions and Parameters 2 2.18 Functions and Parameters 3 8.6 Finding an Element in a List
 1.6 Top Down Design and Decomposition in Karel 3.1 Java Methods 3.2 Methods and Parameters 3.3 Methods and Return Values 4.1 Introduction to Classes and Objects 4.2 Classes vs. Objects 4.4 Writing Classes 4.5 Writing Classes and Instance Methods 4.13 Class Design and Abstract Classes