The Advanced Level General Certificate of Education, universally referred to as an A-Level, is a qualification offered by education institutions in UK. A-Levels are usually studied over a two year period. In the first year AS-Level exam is given and in the second year A2 paper is written.
Apart from finishing AS-Level (Advanced Subsidiary), some subjects require completion of GCSE (General Certificate of Secondary Education), O-Level (Ordinary Level) or IGCSE(International General Certificate of Secondary Education). IGCSE has been designed for those whose first language is not English.
The British GCE A-levels are also taken all around the world, as many international schools choose to use the British system as it is widely recognised. Apart from schools, the papers of British examination bodies can be written at education centres around the world, such as those belonging to the British Council. These qualifications are widely recognised around the world. In fact, A-Level is equivalent to first year of North American four year bachelor degrees.
Being an A-Level student, I realise the amount of effort and hardwork required to succeed in the exams. Referring to textbooks and personal notes are never enough. Thankfully there are some great sites that can help students learn and revise A-Level and GCSE material.
My favourite revision site is www.s-cool.co.uk. At s-cool one can find materials , that are structured and explained well, for both A-level and GCSE. The subject list for GCSE includes Biology, Chemistry, English, Food Technology, French, Geography, German, Maths, Physical Education and Physics. The subject list for A-level is vast too and includes Art, Biology, Business Studies, Chemistry, Economics, English Literature, French, Geography, History, Maths, Physics, Psychology and Sociology.
There are also other sites that contain useful information for both A-Level and GCSE. One of them is http://www.revisionworld.co.uk/. The GCSE subjects covered by this site are Applied Science, Biology, Chemistry, English, French, German, Geography, History, ICT, Maths, Physical Education, Physics and Religious Studies. The A-Level subjects include Biology, Business Studies, Chemistry, Economics, English, Geography, Human Biology, Math, Physical Education, Physics, Psychology, Religious Studies and Sociology.
Another great site for GCSE revision is http://www.bbc.co.uk/schools/gcsebitesize/. GCSE Bitesize probably has the largest coverage of GCSE subjects that includes Art and Design, Business Studies, Design & Technology, DiDA, Drama, English, English Literature, French, Geography, German, History, ICT, Irish, Maths, Music, Physical Education, Religious Studies, Science and Spanish. This site also has various educational games.
The site http://revision-notes.co.uk/index.html can be useful too as it has many notes on various subjects for A-Level and GCSE.
There are also some websites that have been created for particular subjects. For Business and Economics, I found www.bized.co.uk and www.tutor2u.net to be very helpful. www.mathsrevision.net is a Math revision site while http://www.schoolhistory.co.uk/revision/ is a history revision site.