This text-cum workbook is based NCERT syllabus in accordance with New Education Policy of the Government of India. The latest teaching method: visualization and easy-to-difficult style has been adopted. The scientific concepts are presented in an exciting, interesting and easy to understand form. Scientific terminology and familiar vocabulary has been used. The examples have been taken from the modern environment of the children. The illustrations are in live colours and looks as they are moving. "Aao Doharaye" should be recited orally to memorize the main points. "Aao Khele" is a creative approach towards learning of science. It will make children interested learners of science. 'Test papers' are given after every third part of the book to test the students quarterly, half-yearly and yearly. The test is dynamic. It stimulates curiosity, helps in understanding the observed facts with reasons, examples and applications. Finally it produces a creative interest in the child to explore further. Note : This series is also available in English named "Progressive Science".