Let's meet a new type of data and our first example of an object.

strings

Strings

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

functions

Functions

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

loops

Loops

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

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.

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.

simpleconditionals

Conditional Expressions and Statements

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

variableoperations

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.

variablesandtypes

Variables and Types

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