I have used Math-U-See's Stewardship study and found it very good.

I posted the following on General R, also.

You might want to check out Math-U-See's Stewardship study. It's very practical and excellent. Check out the contents to see if it has the kinds of things she needs. It has a wide range of topics, like measuring for wallpaper or paint, understanding paycheck stubs, etc. HTH,