Seeing Math: Similarity and Scale

This episode closes our geometry focus by showing how similarity and scale serve as the bridge into ratios, proportions, and later functions. We explore what makes figures similar, how scale factor represents a preserved relationship rather than a formula, and why students need visual experiences with enlargement and reduction before working with numbers.Along the way, we address real classroom challenges, including unfinished learning, limited instructional time, and the pressure to move students forward before connections are solid. We discuss how teaching concepts in isolation often deepens gaps, and why making relationships explicit is essential for sense-making and long-term understanding.You’ll hear practical strategies for helping students reason about similarity using representations like tape diagrams, ways to anticipate common misconceptions, and ideas for re-engagement when timing or pacing doesn’t allow for a full instructional reset. We also connect these practices to research on high-impact strategies, including microteaching, reflection, and metacognition, and discuss how short video routines can activate learning both at home and in the classroom.This episode is designed to spark meaningful PLC conversations, support thoughtful sequencing, and help teachers position students for success across domains. It closes the geometry chapter and opens the door to our next focus: ratios and proportions—same story, new chapter.Send a textBuild multiplication fluency through understanding with the Seeing Patterns, Building Power series. Two books now available on Amazon—plus check out my son’s new adventure novel, Anansi: Shadows of Myth and Mystery!Thanks for tuning in to this episode of the Make Math Happen podcast! If you enjoyed today’s conversation, subscribe on your favorite listening platform, leave a review, and share this episode with your fellow educators. You can also join the discussion and connect with me directly by clicking the link to join the Math Collective. Together, we’ll keep exploring practical strategies to transform classrooms and inspire students. Remember, new episodes drop every Sunday at 9:00 am, so mark your calendars! Until next time, keep making math happen, and I’ll catch you in the next episode.If you like math videos, let's connect: YouTube TikTok