Softschools has lessons in different areas and they are divided by grade level. You can choose games or worksheets
Compact for reading level 1 is for first grade and consists of a daily homework sheet to be practiced with parents or teacher. If you go down to the bottom of the page there are links for k,1,2,3 grade. These are free and can be downloaded, or I ordered them from government publishing site-for free. I didn't even have to pay shipping!
These should get you started. Of course there are lots of programs which you pay for. Let us know if you have money to burn.