Here are some links to math sites that I have found useful:
LINCS https://community.lincs.ed.gov/
An excellent resource for connecting with other Adult Education folks across
the country and finding tons of resources.
PHET https://phet.colorado.edu/
Online simulations of math and science concepts. These are very useful,
engaging and fun. The HTML5 ones work the best.
Illuminations http://illuminations.nctm.org/Default.aspx
These are lessons, games, activities from the National Council of Teachers of
Mathematics (NCTM)
TEAL https://teal.ed.gov/sites/default/files/Teal_Math_Works_Guide_508.pdf
Math works guide from TEAL (Teaching Excellence in Adult Education).
