As we begin writing algorithms, let's stop and discuss how to organize our code into reusable units called functions.

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functions

Functions

This lesson covers our last core computer capability: the ability to repeat something multiple times, very quickly.

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loops

Loops

Let's learn about our first data structure: arrays, which put data values in order.

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arrays

Arrays

Next we'll examine how to make our conditional statements a bit more complex, allowing us to make more interesting decisions based on data in our programs.

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compoundconditionals

Compound Conditionals

One of the things that makes computers so powerful is their ability to make decisions. We'll explore that capability in our programs in this lesson.

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simpleconditionals

Conditional Expressions and Statements

Our journey continues as we examine how we can manipulate the data stored by variables in our programs.

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Operations on Variables

Let's begin our journey in computer science by presenting two of the basic building blocks of computer programs: variables and data types.

Homework: Array 123

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