Check this out!

http://www.ielanguages.com/spanish1.html

Spanish III Extra Credit Opportunity

Write a story of about 10 sentences in either
preterite or imperfect tense. Don't use an
internet translator because I'll notice you are
cheating (yes, I will). After you write this down,
make sure you have everything on the right tense
(follow the rules, look in your book, ask me). Don't
ask native speakers to do this for you, that's cheating.
The story should be about somebody in your family
when they were your age (a situation, preterite), or
something this person used to do during that time
(imperfect). After that, you'll record yourself telling me
the story (hey, I know your voices) and you'll send this
to me through email: spanisheasths@gmail.com
Last day: Wednesday 20th no excuses!!!!! (20 points)

Preterite / Imperfect

http://mld.ursinus.edu/~jarana/Ejercicios/self-check/pret_imp1.html

http://www.123teachme.com/learn_spanish/node/1769

http://legacy.lclark.edu/~benenati/pretimp/preterito1.html

http://legacy.lclark.edu/~benenati/pretimp/preterito2.html

http://legacy.lclark.edu/~benenati/pretimp/imperfecto1.html

http://legacy.lclark.edu/~benenati/pretimp/imperfecto2.html

http://legacy.lclark.edu/~benenati/pretimp/impret.html

http://legacy.lclark.edu/~benenati/pretimp/primp.html

Online Spanish Books

Spanish I
http://www.classzone.com/books/en_espanol_1/?state=IA

Spanish III
http://www.classzone.com/books/en_espanol_2/?state=IA