The free portion of abcteach contains over 3,000 free printable documents. However, for $40/year you can have access to over 30,000 printables on the member site. You also have access to over 60 abctools in a variety of subjects and categories. These tools allow members to create custom documents tailored to their children's interests and learning styles. You can create custom math worksheets, spelling sheets, crossword, etc. There are actually too many options to list.
We do not use a lot of worksheets in our schooling, so this site was not as useful to me. But for any teacher, homeschooler, child care provider, or anyone that works with children and uses worksheets, this site has a lot of potential. So whether you need something for math, science, or social studies, you will most likely find it on abcteach. There are also several teacher helps like clip art, desk signs, and lesson plan templates. There are other such sites on the Internet and I do not know how abcteach compares to them.
You can read how other Crew members used abcteach here.
Disclosure:This product was provided to our family for free as members of the 2009-2010 Old Schoolhouse Magazine Homeschool Crew. No further compensation was received. Reviews and opinions expressed in this blog are my own.A