Welcome to Shadow Length Mathematics! Curious how a stick's shadow can reveal the sun's angle? Share your shadow measurements, setup photos, or ratio questions, and compare notes with others testing the same ideas outdoors. No prior experience needed to join the conversation.

Online Community of Inquiry

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Teacherrogers

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As more traditional college courses transition to online formats, educators need effective teaching practices to deliver content and build discourse that creates an online community of inquiry (COI). A COI encompasses the social and cognitive interactions among students, instructors, and experts in the field, as well as interactions with the content provided. Social presence, cognitive presence, and teaching presence are
 
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About Lvelu

This forum gathers practical notes and questions about shadow length mathematics for learners and educators. It focuses on concrete models, discovery activities, and clear worked examples rather than claims of expertise. Contributions are welcome from anyone measuring shadows and thinking through the geometry.

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