Mental Math goal

via GIPHY

X facts practice with playing cards

Take from Ten in action

Take from Ten (part 1)

The earlier post shows the algorithm as it shows up in practice.  Here I've tried to back up a little and give a (relatively) brief example of how the teaching illustrates what's happening with each step involved.

Take From Ten - for subtracting with borrowing

This video should give a pretty good comparison between ways of looking at borrowing to subtract.  Take From Ten helps to reduce the number of facts that a student needs to memorize and filter through to recall the desired fact, while working in the context of multi-step procedure.  I hope this helps to make sense of it.

Test new way

This is a test publishing from my phone.

Cumulative review!

Here's a link to a good place to start your review.

http://www.glencoe.com/sec/math/algebra/algebra1/algebra1_05/chapter_test/index.php4/na