Link to exercises
Here is a list of ruby terms and definitions used in class.

Layer of Abstraction - A way of hiding the working details of a subsystem, allowing the separation of concerns to facilitate interoperability and platform independence.
Data Type - An attribute of data which tells the compiler or interpreter how the programmer intends to use the data.
Variable - A symbolic name associated with a value and whose associated value may be changed
What's the difference between a local variable, constant variable, and a global variable? - The scope and where they are available to be used within a given program.
What does scope mean? - The availability of an object in regards to a program.
Constant Variable - A variable that is stored and not changed.
Method - Computer function or subroutine that is tied to a particular instance or class.
IRB - Interactive ruby shell.
Operators - Constructs defined within programming languages which behave generally like functions, but which differ syntactically or semantically.
Class - In object-oriented programming, a definition that specifies how an object works.
Gem - RubyGems is a package manager for the Ruby programming language that provides a standard format for distributing Ruby programs and libraries.

Conditional - expression checked allowing code logic to happen
The difference between if, elseif and else. - If executes if condition is true, elsif only if condition was false and other condition true, and else if other conditions were false.
**What are Case/When statements? - statments which can check multiple conditions. Similar to switch statements in other languages.
**What is a data structure? - Data organization or storage that allows efficient access and modification of data. Arrays - A group of data or information
What is meant by 'built-in' methods? - Methods part of the language that don't need to be defined.
Loops - Sequence of instructions that are moved through or repeated.
What are infinite loops? - Loops that are continually evaluated.