Elementary Mathematics 2
posted by Tee .
Counting by ones, counting by tens, and counting by groups and singles:
I was rather curious about how these methods of counting can be used to coordinate concepts and oral and written names for numbers.

Since this is not my area of expertise, I searched Google under the key words "counting oral written" to get these possible sources:
http://books.google.com/books?id=xqd4O1Za1kQC&pg=PA68&lpg=PA68&dq=counting+oral+written&source=web&ots=NDMsE1Zb7&sig=q_seFfVH6awL3st195lyXoV9I&hl=en
http://books.google.com/books?id=eAcCAAAAYAAJ&pg=PA56&lpg=PA56&dq=counting+oral+written&source=web&ots=i07MIq_xvl&sig=qBSRA57r93eUTHWSRJRVEYBEIPA&hl=en
http://books.google.com/books?id=_p1DAAAAIAAJ&pg=PA262&lpg=PA262&dq=counting+oral+written&source=web&ots=toeNtE4gYR&sig=u0t4bQO4U_QZ32kG_Q7bwtwevQ&hl=en
http://books.google.com/books?id=_p1DAAAAIAAJ&pg=PA262&lpg=PA262&dq=counting+oral+written&source=web&ots=toeNtE4gYR&sig=u0t4bQO4U_QZ32kG_Q7bwtwevQ&hl=en
In the future, you can find the information you desire more quickly, if you use appropriate key words to do your own search.
I hope this helps. Thanks for asking.