Ever wondered how mathematics would work if we had three fingers on each hand? Step into your students' shoes as we explore mathematics through a Martian lens! Experience a complete Thinking Classroom lesson where familiar mathematical concepts become delightfully unfamiliar. Through this unique perspective, participants will engage with core BTC practices - from vertical non-permanent surfaces to visibly random groupings - while discovering how mathematical meaning-making feels for our students. Leave with practical insights about creating accessible, engaging mathematics learning experiences for diverse learners, including emergent multi-linguals and neuro-divergent students. Join us for an out-of-this-world mathematical adventure!