CHOOSE YOUR NEXT ADVENTURE
Find your learning path
Start with your school level. Then choose a subject and the course that is right for you.
Grades 3–5
Elementary
Build a strong foundation. Explore one subject at a time.
Choose a subject
Grades 6–8
Middle School
Connect ideas through course units, missions, and electives.
Choose a subject
Grades 9–12
High School
Find core courses and explore your interests through electives.
Choose a subjectReal places and objects, not generated scenes. Cover images are illustrative; they do not depict MasteriTrail students or the fictional missions.
Image descriptions, sources & reuse credits
- Butterfly on Wildflower, Theodore Roosevelt National Park
A butterfly rests on a purple wildflower among other flowering plants. NPS / Jeff Zylland.
Original source (opens in a new tab) · Public domain — item marked Full Granting Rights (opens in a new tab)
- Meadow in Fall, Valley Forge National Historical Park, 2020
Autumn meadow grasses, a tree and a path in front of forested hills at Valley Forge. NPS Photo.
Original source (opens in a new tab) · Public domain — item marked Full Granting Rights (opens in a new tab)
- Library of Congress Main Reading Room, 2009
Marble columns, bookshelves and reading desks in the Library of Congress Thomas Jefferson Building. The Library of Congress, Carol M. Highsmith Archive. Photograph by Carol M. Highsmith; Prints & Photographs Division, LC-DIG-highsm-11604. Official detail crop, resized for the web.
Original source (opens in a new tab) · Public domain — photographer’s dedication (opens in a new tab)
Sources do not sponsor or endorse MasteriTrail. Images are served locally; three photographs are resized web derivatives, and framing may crop a cover image. Teaching diagrams remain labeled models, not photographs.