Khan Academy
Khan Academy: Recursive Formulas for Arithmetic Sequences
Find the recursive formula of an arithmetic sequence given the first few terms.
Khan Academy
Khan Academy: Algebra I: Sequences Word Problems
Given a verbal description of a real-world relationship, determine the sequence that models that relationship. Students receive immediate feedback and have the opportunity to try questions repeatedly, watch a video or receive hints.
Varsity Tutors
Varsity Tutors: Hotmath: Algebra Review: Arithmetic Sequences
Find a quick, concise explanation of arithmetic sequences. The formula for the nth term and several examples are given to help you understand how to find the nth term of a variety of arithmetic sequences.
Mathigon
Mathigon: Algebra: Arithmetic and Geometric Sequences
This lesson focuses on arithmetic and geometric sequences using several examples and practice exercises.
Mathigon
Mathigon: Algebra: Special Sequences
In addition to arithmetic and geometric sequences, Fibonacci Numbers, and figurate numbers, there are countless interesting sequences that don't follow a similar, regular pattern. These include prime numbers, perfect numbers, the...
Cuemath
Cuemath: Sequences
A comprehensive guide for learning all about sequences with definitions, the types of sequences, examples of sequences, formulas for sequences, solved examples, and practice questions.
Mangahigh
Mangahigh: Algebra: Find the Nth Term of a Linear Sequence
Students explore an interactive tutorial on linear sequences and then practice their knowledge by attempting ten questions that increase in difficulty level.
Mangahigh
Mangahigh: Algebra: The Term to Term Rule
Students explore the concept of the term to term rule by working through an online tutorial and then attempting a ten question quiz that increases in difficulty as questions are answered correctly.
Other
Math Portal: Arithmetic Progressions
A mini-lesson on arithmetic progressions includes a definition, examples with solutions, and a set of interactive problems at the completion of each lesson.
Texas A&M University
Wtamu Virtual Math Lab: College Algebra: Sequences
An introductory tutorial on sequences, complete with important definitions, example problems and step-by-step solutions, and several practice exercises for you to complete and check. Provides good explanations and examples of arithmetic,...
Cool Math
Coolmath: Gauss's Problem and Arithmetic Series
This algebra lesson explains Gauss's Problem and introduces arithmetic series.
Math Planet
Math Planet: Geometric Sequences of Numbers
Gain an understanding of the geometric sequences of numbers by viewing an example and a video lesson.
CK-12 Foundation
Ck 12: Analysis: Explicit Formulas
[Free Registration/Login may be required to access all resource tools.] In this lesson students learn about explicit formulas for identifying terms of a sequence without knowing the preceding term. Students examine guided notes, review...
CK-12 Foundation
Ck 12: Analysis: Explicit Formulas
[Free Registration/Login may be required to access all resource tools.] This lesson covers how to write the nth term and how to use it to find terms in the sequence. Students examine guided notes, review guided practice and attempt...
ClassFlow
Class Flow: Number Square Algebra
[Free Registration/Login Required] In this flipchart, students interact with whole numbers arranged in a square to apply their arithmetic skills of multiplication, addition and subtraction.
Richland Community College
Richland Community College: Math 116 Lecture Notes
This site from the Richland Community College provides the detailed lecture notes to a college algebra course, complete with equations and definitions. Content ranges from "functions and their graphs" to "conics and parametric equations."
Khan Academy
Khan Academy: Sums of Consecutive Integers
Practice finding the nth number in a sequence of consecutive numbers based on the sum. Students receive immediate feedback and have the opportunity to try questions repeatedly, watch a video or receive hints.
Ministry of Education and Universities of the Region of Murcia (Spain)
Ministerio De Educacion Y Ciencia: Sucesiones Y Progresiones
In Spanish. This unit introduces the concept of succession focusing on the study of arithmetic, geometric and Fibonacci.
Illustrative Mathematics
Illustrative Mathematics: F If.3 Snake on a Plane
In a video game called Snake, a player moves a snake through a square region in the plane, trying to eat the white pellets that appear. This task has young scholars approach a function via both a recursive and an algebraic definition, in...