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103,95€(IVA inc.)
Early algebraization: a global dialogue from multiple perspectives
- Cai, Jinfa
- 978-3-642-17734-7
- 2011-03-01
42,18€(IVA inc.)
Teaching and learning proof across the grades: a K-16 perspective
- Stylianou, Despina A.
- 978-0-415-88731-1
- 2010-09-01