Grade 12 Maths 
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Arithmetic Sequences  
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Grade 12 Maths 
Overview
Sequences are similar to functions but work off a discrete domain or the natural numbers. Quadratic  qaudratic; arithmetic  linear; geometric  exponential function.
Before you take on this lecture cover Functions Overview and review your grade11 work. Otherwise its pretty much a stand alone section. Examiners usually tell you if you are dealing with a Quadratic Sequence, but they do want you to determine the difference between an Arithmetic Sequence and a Geometric Sequence.
Students  Keep with the notation of T for an element and Sn for a sum or series. Learn the formulas on the info sheet
Instructors, Teachers, Manager  Sequences and Series is 25 Marks out of 150. Its a must for a distinction. Recognizing the difference between Arithmetic and geometric is the key skill. The rest comes from the information sheet.
Goals
A sequence is a set of ordered numbers. You must be able to work with the following sequences Quadratic Sequences A series is a set of ordered numbers where the terms are added together. In a series you must be able to deal with Sigma notation Applications of Series including percentages and probabilities. 
Revision of Grade 11
Mathplanet Pre Algebra
Siyavula Grade 11
External Links
Siyavula  
Kahn  
Exam Solutions.....  Overview  
Open Stax  Quadratic Sequence  
BBC  Quadratic Sequences  
Exercises
That Quizz  Arithmetic Sequences and Series 