both books in PDF for $29

Feedback from teachers

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Observing students:

  • “I notice the students are engaged – not just engaged in that they are interested in the content, but engaged in real thinking.”
  • “It’s neat that it changes and the students see their changes right away – they don’t have to wait for me to help tell them whether it’s right or wrong”.
  • “I thought they (the students) would give up, but I was so impressed that they persevered – they were determined to make their program work”.
  • “I liked that every student was being challenged, yet each student was experiencing success and wanted to keep going”.
  • “They came back in for recess and right away got back to testing out their programs and showing one another what they made with their code”.

Teacher experience:

  • “I like that we aren’t getting lost with the coding, and are focusing on developing understanding of the math”.
  • “It really does help me see the math in a different way”.
  • “I didn’t think of it (the math) like that”.
  • “It integrates with math very clearly – it doesn’t feel forced”.
  • “I like that there are opportunities to be creative, but we are still focused on math”.
  • “I found myself noticing things that I wasn’t expecting”.
  • “This makes me want to try more of these activities”.



PDF for $19


PDF for $12

By George Gadanidis & Lisa Anne Floyd.

Coding offers these advantages

— makes math concepts “tangible”

— models them dynamically

— with Scratch, and with Python

Classroom-tested. Grades 1-8. 130 pages.

NEW — Book a Face-to-face or video conference workshop on this book, with Lisa Anne Floyd.

See more info at our Workshops Page.



By George Gadanidis.

Use authentic computational modelling practices of scientists and professionals.

Bring math concepts and relationships to life.

With Scratch. And with Python.

Classroom-tested. Grades 6-10. 72 pages.



George Gadanidis on “Five As for Coding & Math”