Math Planet
Math Planet: Algebra 2: Geometric Sequences and Series
Gain an understanding of geometric sequences and series by viewing examples and a video lesson. [1:46]
Khan Academy
Khan Academy: Use Geometric Sequence Formulas
Given the formula of a geometric sequence, either in explicit form or in recursive form, find a specific term in the sequence. Students receive immediate feedback and have the opportunity to try questions repeatedly, watch a video or...
Khan Academy
Khan Academy: Recursive Formulas for Geometric Sequences
Find the recursive formula of a geometric sequence given the first few terms or given an explicit formula.
Houghton Mifflin Harcourt
Holt, Rinehart and Winston: Homework Help Independent Practice: Geometric Sequences
Get independent practice working with geometric series. Each incorrect response gets a text box explanation and another try. Correct responses are confirmed.
Khan Academy
Khan Academy: Explicit Formulas for Geometric Sequences
Solve problems such as: The first four terms in a geometric sequence are 1/3, 1, 3, and 9. Find an explicit formula for the sequence.
Varsity Tutors
Varsity Tutors: Hotmath: Algebra Review: Geometric Sequences
Find a quick, concise explanation of geometric 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 geometric sequences.
Wolfram Research
Wolfram Math World: Geometric Sequence
This MathWorld site, an online training tool, provides a definition and an example of a geometric sequence and how it operates. Other math-related topics available.
Khan Academy
Khan Academy: Use Geometric Sequence Formulas
Given the formula of a geometric sequence, either in explicit form or in recursive form, find a specific term in the sequence.
Khan Academy
Khan Academy: Extend Geometric Sequences
Given the first few terms in a geometric sequence, find the next term in the sequence.
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.
Better Lesson
Better Lesson: Geometric Sequences and Series
Students will be able to make use of structure on their way to deriving a formula for the sum of a geometric series. They will also gain more experience in finding the nth term of a sequence/series. Includes short video. [1:15]
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.
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.
University of Vienna (Austria)
University of Vienna: Arithmetic or Geometric?
Interactive quiz in which the first few terms of a sequence are given, which then must be identified as an arithmetic or geometric sequence. After completion, the site returns a score to judge understanding of the different types of...
Varsity Tutors
Varsity Tutors: Hotmath: Sequences and Series
Hotmath provides 20 practice problems relating to sequences and series. Each of the practice problems include a step-by-step guide for solving.
Texas Instruments
Texas Instruments: Activities: Numb3 Rs: Growing Geometrically
Based off of the hit television show NUMB3RS, this lesson introduced students to the concept of geometric growth and geometric series/sequences. Students explore some real-life examples of geometric growth, such as chain letters, bank...
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...
Math Notes and Math Tests
Pre Calculus Note: Arithmetic Sequences and Partial Sums [Pdf]
The tutorial discusses sequences and series. Students learn about arithmetic sequences, geometric sequences, partial sums, and infinite geometric series. The resource consists of class notes and examples with solutions.
National Council of Teachers of Mathematics
The Math Forum: Ask Dr. Math: Geometric Sequence?
This site, set up as a question format to ask Dr. Math, concerns itself with the fundamentals and basics of geometric progression.
CK-12 Foundation
Ck 12: Elem Math: Predicting the Next Shape in a Sequence of Complex Shapes
[Free Registration/Login may be required to access all resource tools.] Students watch a video and try practice problems on identifying and continuing geometric patterns.
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,...
Math Open Reference
Math Open Reference: Sequences
Learn about sequences with this handy reference guide. Provides a detailed definition, examples, and an interactive activity that enhances further explanation. Includes links to related topics.