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|a Improvisaciones en ciencia: manual para profesores
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| 300 |
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|a 109 p
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| 942 |
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|c BK
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|a MATERIAL Y EQUIPO DIDACTICOS
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| 650 |
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|a Rol del docente
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|a Tecnología educacional
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|a last modification
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|k Rodrigo Vera
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