Tags » Arithmetic

Ray's New Algebra on the Horizon

We are barely half-way into the lessons of Ray’s Primary Arithmetic and already I have been approached to do Ray’s New Algebra next year!  Wow.  I’m still working out the details and logistics of it.   314 more words

Ray's Arithmetic

Ray's New... Math Website!

You may have noticed that things look a little bit different here since our last posting.

During the past month we’ve been busy — very busy — not only producing math videos for… 521 more words

Ray's Arithmetic

Latest Lessons: Subtraction

We’ve left addition for the moment.  But only for a moment.

The next section of Ray’s Primary Arithmetic book is SUBTRACTION.

That starts at Lesson 24–sorry, XXIV. 72 more words

Ray's Arithmetic