http://www.christopherushomeschool.com/our-store/publications-age-guide/fourth-grade-mathematics-bundle-metric/ I haven't actually seen the book, but according to the description, this option is all metric, and the other option isn't.
Pierre -- loi mintu se ckaji danlu cu jmaji _______________________________________________ USMA mailing list USMA@colostate.edu https://lists.colostate.edu/cgi-bin/mailman/listinfo/usma