We will be using the Folger Shakespeare Library text.  There are many formats available for free download, but please be sure to select a version, like the PDF, that has line numbers. 

Download here: 
https://shakespeare.folger.edu/shakespeares-works/richard-iii/download/

If you would like a solid book with great footnotes, you can buy the Folger paperback edition here:
https://bookshop.org/books/richard-iii-9781476786926/9781476786926
or here:
https://www.powells.com/book/richard-iii-folger-shakespeare-9780743482844
or, if your town still has an independent brick and mortar store, do give them your business.

Students should also have a notebook dedicated to this class. Done well, this notebook can be a resource for future Shakespeare courses.

学習者は、Outschoolが提供する基本ツール以外のアプリやウェブサイトを使用する必要はありません。

This is pretty mature content, mainly due to violence and disturbing interfamily betrayals.

This is what Common Sense Media has to say about the 1955 film version:

Parents need to know that Richard III is a . . . Shakespearian tragedy, directed by and starring Laurence Olivier, that appears much like a filmed play. It's one of Shakespeare's more violent stories, with the violence relatively strong for its time. One character is bludgeoned and drowned in a cask of wine. Another character is beheaded by an axe, with the camera pulling away as the axe falls -- afterwards blood is shown running down the axe blade. Two young boys are smothered to death in their bed. During the climactic battle there is much sword fighting but only one death that's relatively graphic, with the character having his throat cut before being set upon by dozens of swordsmen. The dialogue is largely taken verbatim from Shakespeare's original play. Audiences unfamiliar with the playwright's work may need patience to adapt to the rhythm and language used. The script includes "bastard" -- used in its literal sense -- and "damn."
https://www.commonsensemedia.org/movie-reviews/richard-iii

Teacher's note: CSM rates this film as appropriate for children as young as 10, but I think the play itself is too much for all but the most mature and above-average 12-year-old. Of course, you know your child a lot better than I do.