If you love Open Middle problems, then you’ll love these matrices that compare problems across the grade levels at different Depth of Knowledge levels. Use the button below to download high quality, printable PDFs of them all or preview what you’ll get by scrolling below.


Click on a link below to jump to the preview for that grade level or scroll down to the ones you’re interested in.


Elementary & Secondary Matrix




Elementary Matrix (K-5)




Secondary Matrix (6 - Calculus)




Third Grade Matrix




Fourth Grade Matrix




Fifth Grade Matrix




Sixth Grade Matrix




Seventh Grade Matrix




Eighth Grade Matrix




Algebra 1 Matrix




Geometry Matrix




Algebra 2 Matrix