Download All Textbooks for Class I to X

Nost of the Textbooks published by NCTB for class I to X can be downloaded from the following links. Soem book have English version too. Those links are available within parenthesis ().

বাংলাদেশ জাতীয় শিক্ষা অধিদপ্তর ও পাঠ্য পুস্তক বোর্ড ২০১৪ শিক্ষাবর্ষের নতুন বই ছিঁড়ে বা হারিয়ে গেলে বইয়ের দোকান থেকে নগদ টাকায় কিনতে হয়। এ ছাড়া বাড়ির বাইরে কোথাও বেড়াতে গেলে সবসময় বই নিয়ে যাওয়া যায় না। এই সমস্যা দূর করার জন্য শিক্ষাবোর্ডের ওয়েবসাইটে এসব বইয়ের ডিজিটাল ভার্সন পাওয়া যাচ্ছে। যাদের কম্পিউটার আছে তারা ইন্টারনেট থেকে এসব বই ডাউনলোড করে নিয়ে পড়তে পারবেন। সেই লক্ষ্যে এসব বই জাতীয় শিক্ষা অধিদপ্তর জাতীয় পাঠ্য পুস্তক বোর্ড (এনসিটিবি) এর ওয়েব সাইটে প্রথম শ্রেণী থেকে অষ্টম শ্রেণীর সব বইয়ের ডিজিটাল খার্সন ডাউনলোড করার ব্যবস্থা রয়েছে। যে যার মতো দরকারী বইগুলো এখান থেকে ডাউনলোড করে নিতে পারবেন। ব্রাকেটের () মধ্যকার লিংকে ইংরেজী বইয়ের ইংরেজী ভার্সন ।

নীচে বইয়ের লিংকগুলো দেওয়া হলো –

প্রথম শ্রেণী

দ্বিতীয় শ্রেণী

তৃতীয় শ্রেণী

চতুর্থ শ্রেণী

পঞ্চম শ্রেণী

ষষ্ঠ শ্রেণী

সপ্তম শ্রেণী

অষ্টম শ্রেণী

নবম-দশম শ্রেণী

National Flag of Bangladesh

The national flag of Bangladesh (Bengali: বাংলাদেশের জাতীয় পতাকা) was adopted officially on 17 January 1972. It consists of a red disc on top of a green field, offset slightly toward the hoist so that it appears centred when the flag is flying. The red disc represents the sun rising over Bengal, and also the blood of those who died for the independence of Bangladesh. The green field stands for the lushness of the land of Bangladesh. The flag is based on a similar flag used during the Bangladesh Liberation War of 1971, which had a yellow map of the country inside the red disc. In 1972 this map was deleted from the flag. One reason given was the difficulty for rendering the map correctly on both sides of the flag.

Origin: The first flag of Bangladesh was designed by Student Leaders of Shawdhin Bangla Nucleus painter was Shib Narayan Das and was made from clothes donated by the owner of Apollo Tailors, Bazlur Rahman Lasker, of Dhaka’s New Market. On 2 March 1971, the initial version of the flag was hoisted in Bangladesh for the first time at Dhaka University, as the Vice President of Dhaka University Students’ Union (DUCSU), student leader A. S. M. Abdur Rab, raised the flag. The flag was conceived so as to exclude the crescent and the star considered as symbols of West Pakistan. According to CIA World Fact Book, the green used in the flag represent the lushness of the green landscape of the country.

bangladesh-flag
Official specifications: Construction guide for Flag of Bangladesh

According to Bangladeshi government specifications, following is the specification of the national flag:

  • The flag will be in bottle green and rectangular in size in the proportion of 10:6, with a red circle in near middle.
  • The red circle will have a radius of one-fifth of the length of the flag. Its centre will be placed on the intersecting point of the perpendicular drawn from the nine-twentieth part of the length of the flag, and the horizontal line drawn through the middle of its width.
  • The green base of the flag will be of Procion Brilliant Green H-2RS 50 parts per 1000. The red circular part will be of Procion Brilliant Orange H-2RS 60 parts per 1000.
  • Depending on the size of the building the flag sizes will be 10 ft × 6 ft (3.0 m × 1.8 m); 5 ft × 3 ft (1.5 m × 0.91 m); 2.5 ft × 1.5 ft (760 mm × 460 mm). The size of the flag for car is 12.5 in × 7.5 in (320 mm × 190 mm), and the size of the table flag for bilateral conferences is 10 in × 6 in (250 mm × 150 mm).
Construction guide for Flag of Bangladesh

Protocol: The national flag of Bangladesh is flown on all working days on important Government Buildings and offices, e.g., the President House, Legislative Assembly Buildings, etc. All Ministries and the Secretariat Buildings of the People’s Republic of Bangladesh, Offices of the High Court, courts of District and Session Judges, Offices of the Commissioners of divisions, Deputy Commissioner/Collectors, Chairman, Upazila Parishad, Central and District Jails, Police Stations, Primary, Secondary and Higher Secondary level Educational Institutions and other buildings notified by the Government from time to time. Ministers of State and Persons accorded the status of a Minister of state, Deputy Ministers and Persons accorded the status of a Deputy Minister while on tour outside the capital within the country or abroad are entitled to fly the flag on motor vehicles and vessels.

Official residences: The following persons have to fly the flag on their official residence:

  •     The President.
  •     The Prime Minister.
  •     The Speaker of Parliament.
  •     The Chief justice of Bangladesh.
  •     Cabinet Ministers.
  •     Chief Whip.
  •     Deputy Speaker of Parliament.
  •     The Leader of the Opposition in Parliament.
  •     Persons accorded the status of a Cabinet Minister.
  •     Ministers of State.
  •     Persons accorded the status of a Minister of State.
  •     Deputy Ministers.
  •     Persons accorded the status of a Deputy Minister.
  •     Heads of Diplomatic/Consular Missions of Bangladesh in foreign countries.
  •     Chairmen of Chittagong hill tracts district offices of Rangamati, Khagrachari and Bandarban.

Motor vehicles and vessels: The following persons are entitled to fly the flag on their motor vehicles and vessels:

  •     The President
  •     Prime Minister
  •     The Speaker of Parliament.
  •     The chief Justice of Bangladesh.
  •     Cabinet Ministers.
  •     Chief Whip.
  •     Deputy Speaker of Parliament.
  •     The Leader of the Opposition in Parliament.
  •     Persons accorded the status of a Cabinet Minister.
  •     Heads of Diplomatic/Consular Missions of Bangladesh in foreign countries.

reference: wikipedia