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A couple of students in my on-line classes have been asking questions about multiplying fractions.  Should you simplify before or after multiplying?  How should you simplify?  By cross-canceling directly, or by a prime factorization and cross-canceling combo?  Here are some videos I have made to help clarify the situation. View on screencast.com » View on screencast.com » View on screencast.com »
I have heard about these websites from various places throughout the past week.  I hijacked a few of the descriptions, but I would rather give a hijacked description rather than an inaccurate description.1.  CoSketch is a multi-user online whiteboard designed to give you the ability to quickly visualize and share your ideas as images. No registration or plugins required.  However, I can see this being a big problem for students with a low-maturity level who would love to draw right over what the instructor is drawing.  So, be careful!  2.  Thinkfinity is a free digital learning platform from the Verizon Foundation…
After a recent afternoon meeting about statistics, I needed to find a few old links that I had buried away.  Well, here are a few odds and ends I found while looking: 1.  Virtual Math Lab at Texas A&M - This is a very good resource for College Algebra, Intermediate Algebra, and Beginning Algebra.  When I opened my link, it actually opened on 'Absolute Value Equations', which means that's probably what my students were struggling with when I initially discovered this website back in 2009. 2.  Quick-and-Dirty Guide to the TI-83, TI-83+, TI-84, and TI-84+ - Although it seems like it would…
Here is the most recent set of helpful resources that I have sort of stumbled upon out of well over 200 hundred that I've looked at today: 1.  Broad Texter - This is a service that allows you to create a group so that your students can join so that they can receive text messages from you.  In fact, I've set up one for my students that I hope to use in the near future.  Feel free to sign up at the top of the page if you're so inclined. 2.  Smart Teaching Blog - My biggest advice when looking at…