Prescribed by National Curriculum and Textbook Board as a Textbook (Bangla version) for Class Four from 2005, English version of the book from academic year 2007.INTRODUCTION TO ENVIRONMENT: SCIENCE Book FourWritten byDr. Iqbal Aziz MuttakiProf. Gulnahar ZamanSyeda Tahmina AktarGul Anar AhmedEdited byProf. Kafil Uddin AhmedTranslated byProf. S. M. HaiderKhondaker M. AsaduzzamanNATIONAL CURRICULUM & TEXTBOOK BOARD, DHAKA
Published by National Curriculum and Textbook Board69-70, Motijheel Commercial Area, Dhaka-1000.[All rights reserved by the publisher]Is permitted to print and sell 500 (Five hundred)Copies of the book for the year 2009 Only.Circular No.317 Date: 15/12/08 Allotment Letter No. 717/08/09 Date : 23/02/09 Rahmania Offest Press, Banglabazer, Dhaka- 1100First Print (Bangla version) : September 2005First Print (English Version) : February 2007 2nd Print (English version) : March 2008Reprint (English Version) : April 2009 Computer GraphicLaser Scan Limited15/2, Topkhana Road, BMA Bhaban.Cover & Illustrations:Domion Neoton PinaruPicture Coloured byAhmed UllahPrinting Supervision Ferial AzadDesignNational Curriculum and Textbook BoardWebsite version developed by Mars Solutions Limited
PrefaceFor improving the existing quality of Primary Education in Bangladesh, National Curriculum and Textbook Board (NCTB) in collaboration with PEDP-2 initiated an extensive program for development of curriculum and teaching learning materials in 2002. In the light of this program the curriculum, textbooks and other teaching learning materials of Primary levels have been prepared, revised and evaluated.The textbook entitled, 'Introduction to Environment: Science'has been prepared on the basis of attainable competencies for the students of Class Four. The subject matter of the textbook is derived from the basic elements of the environment and science around familiar to the children. This will facilitate our young learners to know how they can make best use of the scientific knowledge in their day-to-day life.The contents of the book are analyzed and explained in such a manner with practical examples, illustrations and system of planned activities, that students are inspired to study the subject with a keen interest.This book is originally published in Bangla. From this year NCTB is publishing the English version of the textbook. English is the language of choice in today's globalized world. To facilitate the verbal and written communication skills of our future citizens and suitably prepare them for international competition, we decided to translate the original Bangla textbooks into English. It's pleasant to note that the number of English medium schools in Bangladesh is increasing very fast. In this context NCTB decided to publish all the textbooks of Primary level in English. This was a big endeavour for us. Despite our all efforts the first edition may not be totally error free. However, in the future editions we shall try to remove all errors and discrepancies.