My Town Tutors is a website that connects South Shore parents with teachers who tutor. If you are a teacher who tutors, for a limited time, you can register for using promo code: usteachers. Teachers set the hourly rate and keep 100% of the fees! One of our teachers made $5,000 last year tutoring.

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There are some great resources on the internet for US History.
Teach US History has several great ideas and primary sources. Hopefully a few will be beneficial to you and your students.
http://www.teachushistory.org/indian-removal/resources