La mejor forma para aprender medidas de ángulos. | Matemolivares

This is a great practical, visual solution for teaching angles!

AMICI DEL 10 CON APPENDINO E MOLLETTE (Cool Teach - Adventures in Teaching: Numbers)

This is a visual aid teaching number bonds up to Using a coat hanger & clothespins as a visual aid & practical support. Easy for students to visualize.

teaching math plus or minus 10  (almost as low tech as using a slide rule--who knows what that is besides me???)

Hundreds Chart Teaching Tool for students struggling with marcy cook activities on the hundreds chart :)