Topic of this video:  Variability

Unit: Statistics

Course: Algebra 2

Video Duration:  12 minutes and 13 seconds

This video:

• Gives the definition of variability, explains the concept, and shows a visual
• Describes measure of variability, gives examples and explains their formulas:  range, variance and standard deviation
• Gives TI-84+ graphing calculator steps on how to find the measures of variability

Hello!  I created this video for students to learn this topic independently.  This video is a tool you can use to teach, preview, reteach, or just have as an additional resource.   The video uses student-friendly language and explains topics as simply as possible.  If you’re teaching remotely, this video is invaluable.  

The video consists of my hand-written pdf file of my notes,  and as I explain each concept and example, I point an arrow to the work I’m explaining.   In the videos, I do not show my face, nor mention any names, nor show any photos, just the math is shown and my voice is heard.  Thus, this video can be used in any classroom.  All videos are in English.  When you purchase this, you will receive a zip file which includes the video and the pdf of the notes which are explained.   What you see as thumbnails for this product is the pdf file. 

I usually assign a video as homework and ask students to write down everything for their own notes.  I then check their notes as evidence that they completed the assignment- but of course, you’re welcome to use this resource in any way you want.  During in-person schooling, I have a flipped classroom and my videos are crucial to its success.  In remote learning, I use the videos for every topic I introduce, and students find them extremely helpful.  

I hope my videos can help you out too!

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I use this video in my Common Core aligned Algebra 2 course.  Other videos for this unit and course are available to buy as well.  My video collection for this unit includes:

• Measures of Center and Solving for them
• The Normal Distribution
• Variability
• Studies and Experiments
• Populations, Samples, Proportions, Means
• Confidence Intervals