Monica,

Thank you for your message. The worksheets are not reproducible, we do recommend purchasing a second workbook for your son to use. For Level C Worksheets the purchase price would be $18. The other option we have that many families find useful is the Worksheets on CD. This sells for $100 which would give you the option of not having to purchase any workbooks.

As far as any other items needed for two children to complete Level C at the same time I would strongly recommend each child have their own AL Abacus and drawing set. All other manipulatives can be shared between your children.

I hope this offers clarification for your situation. If you have further questions, please let us know as we are happy to help in any way possible.

Make it a great day,

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

Our Mission: To help children understand, apply, and enjoy mathematics.

Thank you!