Hi(salam)madame
I could find some textbook for studying for u,,,, they are for Persian school(primary school)…in our course,,pupils study many subjects,,for example Farsi(consist of orthography,,spelling,,,vocabulary,,,,literature,,)…mathematic,,,art,,,,and so on….but I thing for first step..farsi besiad of mathematic(ریاضی (az sufficient....
Beside it u should use dictionary for example farsi to English…
http://edu.tebyan.net/textbooks/0098/index.htm (farsi)
http://edu.tebyan.net/textbooks/0171/index.htm (ریاضی)
See u later