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Sandarbh - Issue 77 (September-October 2011)
- परम्परा से पलायन
- विज्ञान का शौक और भारतीय आदिम सामाजिक ततैयों का अध्ययन
- उभयलिंगता: कुछ रोचक तथ्य
- कौन जमेगा पहले: गर्म पानी या ठण्डा पानी
- समावेशी कक्षाओं में अध्ययन
- वी. सुतेयेव की कहानी ‘द थ्री किटंस’ के कहानी पाठ पर एक विमर्श
- विज्ञान सीखने और सिखाने में हमें दिक्कतें क्यों आती हैं?
- सहपाठी
- अण्डे सेने का वो विचित्र तरीका
Sandarbh - Issue 77 (September-October 2011)
Escape from Tradition by David Gribble Translated by Shrikant Apte
[English PDF, 1.4 MB][Hindi PDF, 65 kB]
In this book excerpt, the author tells us about the lessons he learnt as a teacher. In diverse subject areas, whether writing, dramatics or mountaineering, he found that when students were allowed more freedom to express themselves, ask questions, take decisions, even lead some lessons, they were h more eager and serious about learning.- Science As A Hobby And The Study Of The Social Life Of An Indian Primitively Eusocial Wasp by Raghavendra Gadagkar Translated by Sushil Joshi [English PDF, 317 kB][Hindi PDF,284kB]
This is the first part of an article by evolutionary biologist Raghavedra Gadagkar published as a series over three issues of Sandarbh.
Despite being under pressure from peers and professors to get trained abroad, Raghavendra Gadagkar opted to stay in India and study animal behaviour. He describes how he came to this decision and began studying Ropalidia marginata, a primitively eusocial wasp, with the objective of understanding the organization and evolution of insect societies. - Hermaphroditism: Some Interesting Facts by Sushil Joshi [Hindi PDF, 259 kB]
The author says that phenomenon of hermaphroditism is best understood in the context of evolution of sexual reproduction in unisexual organisms. Using examples he explains how reproduction takes place in prokaryotes, eukaryotes and then in hermaphrodites. He explains how this has led to the separation of sexes and unisexual organisms. - What Will Freeze First: Hot Water Or Cold Water? Translated by Ambrish Soni
[Hindi PDF, 275 kB] [English PDF, 643 kB]
This deceptively simple question was sent in to New Scientist several years ago. While at that time no satisfactory answer was available, the magazine later collated answers sent in to them by readers. These answers are reproduced here.
The question was first sent in by a Tanzanian student in 1969 who found that ice cream froze faster when put in the freezer hot rather than after cooling. Surprisingly, hot water can freeze faster than cold water under certain circumstances. Many readers have sent in their answers, some after experimentation, and have suggested the role of various factors such as the container size, temperature variation in the freezer, type of surface the container rests on and solutes in the water. - Learning In Inclusive Classrooms by Peggy Mohan Translated by Shrikant Apte [Hindi PDF, 311 kB]
The writer urges more thought and sensitivity to the process of integration of Hindi-speaking children from Economically Weaker Sections in government-aided, English-medium private schools. For her the issues are the integration of these children in an alien social environment, and the aspiration for social mobility by learning English. She suggests various possible routes and classroom practices that are being tried by some institutions, that can increase the probability of overcoming this extremely difficult divide - a daunting task indeed. - Reflections On a Storytelling Session Of V. Suteyev’s ‘The Three Kittens’ by Seema Wahi Translated by Shrikant Apte [English PDF, 283 kB][Hindi PDF, 465 kB]
‘The Three Kittens’ by V. Sutyev was published by Eklavya. A storyteller narrates her experiences with children of various age groups. Each group responds uniquely to the story of the three kittens providing insights into their thinking at that age. She is particularly struck by how early on children learn to associate good and bad qualities with light and dark skin colours and how this may affect their self-esteem. - Why Do We Have Problems In Learning And Teaching Science? by Karen Haydock Translated by Bharat Tripathi [English PDF, 259 kB][Hindi PDF, 176 kB]
Science should be taught as a method, of how to think about the world around us, as a way of reasoning, of questioning and not as a repository of facts. The writer proposes a curriculum that makes science-learning method-based, rather than subject-oriented. Such an approach, she feels, will solve many of the existing problems with the teaching and learning of science. - Classmate by Satyajit Ray Translated by Ranjeet Saha [Hindi PDF, 611 kB]
Mohit Sarkar, a well-off man in a big city is visited by a classmate from high-school he has not seen in thirty years. Is the weathered, grey-haired man who has revived many happy memories really his dear friend or an impostor out to cheat him? - Gastric-Brooding Frogs by Parul Soni [Hindi PDF, 119 kB]
Rheobatrachus frogs were unique - females swallowed fertilized eggs and incubated them in their stomachs.Hatched tadpoles then developed and emerged as froglets from the mouths of adult females. Their recent extinction has meant the loss of the only known example of gastric-brooding in the animal world. The article presents some interesting facts associated with this behaviour and these frogs.