#learn #math #foundations<br />Feel free to visit us at <a href="https://treena.org" target="_blank" rel="nofollow">https://treena.org</a> for questions with every video, interactive explorations and to track your progress through all of our awesome content! :) <br /><br />Sets contain items, and we call those items the elements of the set. This lesson explains how to determine whether an item is an element of a set, and the concept of a subset and a superset is defined.<br /><br />Subscribe for more lessons like these!<br /><br />Chapters:<br />0:00 Defining an Element<br />1:42 Subsets and Supersets<br />4:38 Set Equality<br />5:52 Proper Subsets<br />7:25 Summary<br />9:10 End Screen<br />...<br /><a href="https://www.youtube.com/watch?v=NiuiH_5x8pA" target="_blank" rel="nofollow">https://www.youtube.com/watch?v=NiuiH_5x8pA</a>