Triangular numbers are introduced in this video which shows how triangular numbers are found and then proceeds to explain Gauss' method for adding arithmetic sequences.

Continuing the podcast from Triangular Numbers (Part I), the Gaussian formula for summing numbers of an arithmetic sequence is derived with good explanation, and then used for a couple examples.

Continuing from Triangular Numbers (Part II), the podcast solves Gauss' formula for the sum of an arithmetic sequence. Recursive equations are explained heavily, and used in order to solve the Gauss formula.

This lesson demonstrates how to interpret unknown values for an arithmetic sequence. It is 10 of 10 in the series titled "Finding the Nth Term Arithmetic."

This lesson demonstrates how to interpret unknown values for an arithmetic sequence. It is 8 of 10 in the series titled "Finding the Nth Term Arithmetic."

The purpose of this lesson is to show students that numbers follow specific patterns or sequences. Students can watch a video tutorial and then take an online quiz.

The purpose of this lesson is to show students that numbers follow specific patterns or sequences. Students can watch a video tutorial and take an online quiz.

The purpose of this lesson is to show students that numbers follow specific patterns or sequences. Students can watch a video tutorial and then take an online quiz.

Here we look at arithmetic sequences and relate them to recursive and explicit formulas. Students watch a video tutorial and then take an online quiz. [8:07]

Here we look at arithmetic sequences and relate them to recursive and explicit formulas. Students watch a video tutorial. [8:48]

An introductory video on sequences and series. Provides examples of both arithmetic and geometric series, but does not give formal definitions. Introduces and uses sigma notation for sums of series. Illustrates how the general form for a...

An introductory video on sequences and series. Provides examples of both arithmetic and geometric series.

This video lesson explores the common difference of an arithmetic sequence. [1:36]

The common difference in an arithmetic sequence is explained using detailed examples. Learners watch the video tutorial to learn about the concept.

Students learn about the common difference in an arithmetic sequence. Detailed explanations are included in the video lesson.

The mathematics resource includes an explanation of how to find missing values in an arithmetic sequence. The topic is explored through a video lesson with two examples.

The mathematics resource includes a video lesson that defines an arithmetic sequence. The lesson discusses how to determine if a sequence is an arithmetic sequence.

Determine the function of an arithmetic sequence with this lesson. Complete quiz to check understanding.

This video lesson demonstrates how to turn an arithmetic sequence into a function. Students can check their understanding with an assessment. [8:56]

Video example showing two ways to write an expression to represent the number of toothpicks in the nth figure of a linear pattern and using the expression to determine the number of toothpicks in the 50th figure. [6:34]

Video example showing two ways to write an expression to represent the number of toothpicks in the nth figure of a linear pattern and using the expression to determine the number of toothpicks in the 50th figure.

Video gives an example of using inductive reasoning to write an expression to represent the nth term of a linear pattern. [2:06]

This video gives an example of using inductive reasoning to write an expression to represent the nth term of a linear pattern.

This part 1 of a QuickTime movie compares both exponential and arithmetic relationships in a real world setting. The data for both is organize in a table. As you watch and listen to the teacher and students interact it helps clarify the...