The Central Board of Secondary Education (CBSE) is introducing a practical component in the mathematics paper and there will be two additional chances for compartmental candidates. For the first time, we are making changes in the question papers of mathematics and science for Class X. The mathematics question paper will comprise 80 marks for theory and 20 marks for internal assessment, while science paper will have 60 marks for theory and 40 marks for practicals," Controller of Examination M C Sharma told PTI.

In the maths paper, internal assessment, that will account for a total of 20 marks will cover evaluation of activities, project work and continuous evaluation. Similarly in science, the practical exam will have two components -- hands-on school based year-end practical examination and practical skill based multiple choice type year-end written examination -- each comprising 20 marks.

The CBSE has also decided to extend the compartmental chances to five from the existing three.