Scholastic
The First Thanksgiving

Scholastic’s education resources about the First Thanksgiving feature sections on the Mayflower, daily life, the feast. They also include historical letters, and videos & photos (including tours of the living history museum at Plimoth Patuxet).  
Their resources include free lesson plans with printable activities, and teachers’ guides for different age groups. The webpages feature a shop where books on the Mayflower topic can be bought to support lessons; these books are listed with an indication of which age/ability they might suit.