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Sequences Resources

Best of the Web. Picked by our PhDs


Arithmetic and Geometric Sequences

If the names arithmetic and geometric seem vague, that’s because their real identities are veiled in the halls of mathematicians since the time of Archimedes. With this link, you won’t be able to spy in on these top secret halls, but you will gain some insight into what these sequences are all about.

Examples of Convergent and Divergent Sequences

The best way to classify a Sasquatch is by comparing it to other animals you already know. With this link, you can compare new sequences to these to see if they are convergent or divergent.

Examples for Determining Convergence and Divergence

If a black hole is a divergence, does that make a white hole a convergence? Ponder over that while you look at these examples to determine convergence and divergence of sequences.


Arithmetic and Geometric Sequences

Have you ever wondered what Einstein looked like before his hair turned white? This instructor gives a fairly good attempt at impersonating a young Einstein while teaching about arithmetic and geometric sequences.

How to Find the Equation of an Arithmetic Sequence

You can be the Sherlock Holmes of sequences. You’ll learn how to deduce the equation of arithmetic sequences in this video. It’s not necessarily elementary.

How to Find r in a Geometric Sequence

This link will teach you how to find the ratio that binds a geometric sequence of numbers together.

Showing Convergence and Divergence of Sequences

Is the sequence like a well-behaved group of school children walking single-file across the street, or is it more like a pack of wolves run amok across the countryside? After watching this video, you’ll know.

Games and Tools

Identifying and Understanding Arithmetic and Geometric Sequences

Step right up, step right up. Test your superior sequencing skills. Tell if the sequence is arithmetic or geometric. Tell me what the formula for the nth term is.

How to Calculate Terms of an Arithmetic Sequence

Line up a bunch of M&Ms into a sequence by color. Several M&Ms need to survive being eaten for you to see the sequence. This tool teaches you how to find any term of an arithmetic sequence with just two terms given. Arithmetic sequences > M&M sequences.

Tool to Visualize Sequences

Do sequences feel a lot like leprechauns to you? You know they exist, but you just can’t see them. This tool will help you to visualize any sequence you desire. Look hard, and you may find that pot of gold at the end of the rainbow.

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