I was given a whole stack of student worksheet books and I'm wondering if they are compatible with the instructor guides that I already have (purchased last year.) What is the difference between the older books and the current revisions? Is there actually new material, or is it just an updated cover, etc?

Jessica,

Thank you for your message. I am not sure what the copyright dates are of the workbooks that you were given, but they should be compatible with the lesson books. If there were any corrections, they can be found under the corrections section on our website (http://www.alabacus.com/index.cfm?pageID=304). You can also check the copyright dates to ensure there would be compatibility between the two.

I hope this helps, please let me know if you have any additional questions.

Make it a great day,

Cassie
Activities for Learning-RightStart™ Mathematics
Cassie@ALabacus.com
www.ALabacus.com

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