It is an exam, paper, project, oral, workbook series of experiments depending on the IB Class. The IA is heavily criterion-referenced and is marked internally by the course instructor. It is an integral part of course it is important for both standard level and higher level students. It helps students to apply their skill, knowledge without any limitations. It also helps student to recognize or know what they have learnt throughout the course what are their strengths and weakness, and this enables them to work on their weak points and improve or work on their strengths.