Illustrative Mathematics
Illustrative Mathematics: A Sse.4: You Tube Explosion
This task, commentary, and solutions, were authored by Lacey Dixon and Jonathan Utegaard of The University of Arizona. The purpose of this task is to have students derive the formula for the sum of a specific finite geometric series....
Khan Academy
Khan Academy: Finite Geometric Series Word Problems
Here, students can practice solving word problems involving a finite geometric series. They receive immediate feedback and have the opportunity to try questions repeatedly, watch a video, or receive hints.
Khan Academy
Khan Academy: Algebra I: 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. Students receive immediate feedback and have the opportunity to try questions repeatedly, watch a video...
Khan Academy
Khan Academy: Algebra I: Recursive Formulas for Geometric Sequences
Find the recursive formula of a geometric sequence given the first few terms or given an explicit formula. Students receive immediate feedback and have the opportunity to try questions repeatedly, watch a video or receive hints.
Khan Academy
Khan Academy: Converting Recursive and Explicit Forms of Geometric Sequences
Given the explicit formula of a geometric sequence, find its recursive formula, and vice versa. Students receive immediate feedback and have the opportunity to try questions repeatedly, watch a video or receive hints.
CK-12 Foundation
Ck 12: Geometry: Visual Patterns Grades 10 12
[Free Registration/Login may be required to access all resource tools.] This lesson covers how to find the next term in a sequence.
Mathigon
Mathigon: Algebra: Figurate Numbers
There are many other sequences that are based on certain geometric shapes. These sequences are often called Figurate numbers, numbers that can be represented using geometric shapes. Examples include square, triangle, and tetrahedral...
Mathigon
Mathigon: Algebra: Arithmetic and Geometric Sequences
This lesson focuses on arithmetic and geometric sequences using several examples and practice exercises.
National Council of Teachers of Mathematics
Nctm: Illuminations: Limits
In this activity, you can see a representation of several geometric series and their limits.
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.
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.
Interactive Mathematics
Interactive Mathematics: Geometric Progressions
How much rice did the prince get from the king? Find out here as the legendary story is solved using a geometric series. Additional examples and formulas are provided.
University of Toronto (Canada)
The Reasons for Geometric Sequences
This site is set up to discuss and explain the reasons why geometric progression is given its name.