ACSI Spelling Grade Five Teacher Edition Author:Association of Christian Schools Intl This is the teacher key. It is in a three ring binder. Old binder, but it is the same edition as on their website. In very good condition. Student workbook runs about $18 on the website... www.acsi.org/web2003/store/ProdcutList.aspx?CategoryID=96&URL=N .... Teacher key runs $68.30!!!