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science learning curriculum teacher handbook guidebook teacher resource science lab laboratory registers safety lab precautions curriculum framework ncf pedagogy kcf physical science science evaluation improvised aids home made apparatus teaching aids smart board interactive board educational technoiogy smart board uses online resources e library e laboratory e journals online library online laboratory online journals virtual library virtual virtual laboratory edited book concept map types of concept map flow chart learning theories concept types of curriculum hidden curriculum phantom curriculum process administration beauraucracy human relation theory education education administration business education and training continuous comprehensive evaluation formative summative cce school teacher pandemic covid learner characteristics primary pre primary secondary higher secondary adult call for book chapter chapter