00462nam a2200145Ia 450000500170000000800410001702000180005804100080007608200200008410000210010424500450012526000440017030000100021465000920022420191016150434.0190710s9999    xx            000 0 und d  a81-7391-308-0  aeng  aT.B.375.5 P886P  aPrasad, Janardan 0aPractical Aspects in Teaching of Science  aNew Delhib: Kanishka Publishers,c1999  a224p.  aScience - study and teachinga| Science classa| Field tripsa| Science - teaching aids