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March 29, 2022

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It’s your first day as Center Realm’s official cartographer, and you’ve already got a big problem. Center Realm is home to three elder dragons: two ice, one fire, and they’ve lived in harmony for centuries. But scouts have sighted three fire dragons and five ice dragons flying towards the region. Can you figure out where to place the new dragons? Henri Picciotto shows how.

Lesson by Henri Picciotto, directed by Igor Coric, Artrake Studio.

Try your hand at drawing the new dragon regions with these downloadable (and drawable!) maps:

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About the educator: Henri Picciotto is a math educator, retired from teaching after 42 years in K-12 classrooms. He maintains a website ( and a blog ( for math teachers, including many online and downloadable puzzles.

Thank you so much to the patrons for your support! Without you this video would not be possible! Grayson Garbarino, Oge O, Weronika Falkowska, Stefano Esposito, Nevin Spoljaric, Yvonne Feijoo, Sid Chanpuriya, Arjay Arcinue Dineros, Anoom Yasmin, Anoop Varghese, David Yastremski, Noah Webb, B , Erica Guerrero, Roberto Chena, Oliver Koo, Luke Pisano, Andrea Gordon, Aleksandar Donev, Nicole Klau Ibarra, Milo Vermeulen, Ryan Weiler, Jesse Lira, Ezekiel Raui, Zongpu Kou, Cameron Chakraverty, Petr Vacek, Rhys Patterson, Dennis, Olivia Fu, Katrina Adams, Regina Post, Mary Collins, Kari Teffeau, clumsybunnie , Adam Leos, Cindy Lai, Liz, Rajath Durgada Manjunath, Dan Nguyen, Chin Beng Tan, Tom Boman, Karen Warner, Isorn Sookwanish, Iryna Panasiuk, Diane Gallin, Aaron Torres, Vasundhar, Eric Braun and Denka Wee.

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