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Examining the influence of van Hiele theory-based instructional activities on elementary preservice teachers' geometry knowledge for teaching 2-D shapes - ScienceDirect
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secondary education - Phrasing the Van Hiele levels in student-friendly language - Mathematics Educators Stack Exchange
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Using GSP in Discovering a New Theory Dr. Mofeed Abu-Mosa This paper 1. Connects Van Hiele theory and its levels of geometric thinking with. - ppt download
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