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Here’s a guide for Class 12 science students to improve their scores

education Updated: Feb 08, 2012 11:05 IST
Gauri Kohli
Gauri Kohli
Hindustan Times

Equations, laws, calculations and experiments, are important for the CBSE Class 12 science students appearing for the Boards next month. Though science subjects are very scoring, many students say they have a mental block when it comes to writing the tests, which builds up pressure in the last few days of preparation and also on the day of the exam. HT Education spoke to teachers across the Capital who suggested some useful dos and don’ts while attempting the science papers. Some of the common suggestions include being thorough with the NCERT textbooks, solving sample papers and devoting more time to important topics. The practicals should also be taken seriously as they make a lot of difference to the overall scores, say teachers.

Calculus integral, matrices, determinants, linear programming are the topics that carry maximum weightage and should be dealt with seriously. Study vector and 3D only from NCERT. Read the information on study skills, time management, note taking and textbook reading. The more you try different approaches, the more you discover what works for you
- Anupama Mahajan, Army Public School, Dhaula Kuan

Practicals: Keep your cool while performing experiments. Ensure that the circuits are neatly connected in your experiments. In experiments related to optics, your eye level should be at the same height as the optical needle. For viva voce, revise chapters in optics, semiconductors and current electricity

Theory: Go through every topic of optics as this carries 14 marks out of 70. Also revise the high order thinking skills (HOTS) questions thoroughly. Those who wish to score 100 out of 100 should attempt all NCERT questions and additional exercises as many times as possible. Practice numericals and solve at least five previous years' papers. Every paper should be solved in the given three hours
- Manju Verma, DPS, Greater Noida

Practicals: Generally, the viva voce starts with questions related to your project — the interesting inputs that create an impression on the examiner. Be prepared to answer questions on why you chose that particular topic and what your findings are

Theory: Read the CBSE sample papers. Answer questions in the form of points. Underline the key words. Draw big diagrams where needed and label them. Attempt all questions of one section together. Genetics and biotechnology cover 23-24 marks. You can score well in ecology, which is of 14 marks
- Mala Gupta, Springdales, Pusa Road

Practicals: Your practical files and projects must be complete. Read the chapters given in the lab manual and focus on surface chemistry, ionic equilibrium and organic chemistry
Theory: Have enough practice of numerical-based chapters and do not leave out lessons on solids, solutions, electrochemistry and chemical kinetics. One of the most important topics in inorganic chemistry is P-Block. In organic chemistry, you must revise name reactions, word problems and conversion practice
- Mamta Sharma, SRDAV School, Dayanand Vihar

Computer science
Mostly, students are good with boolean algebra, database and SQL and communication in open source concept. These topics comprise 26 marks out of a total of 70 and the rest is attributed to C++. Easy marks can be obtained from two mark questions from theory covering definitions about constructor, destructor, extraction, encapsulation, polymorphism, and inheritance, etc. In data structure, besides considering every detail, do the following topics carefully: address calculation in 2-D arrays, infix to post fix conversion and post-fix evaluation and link list as stack and as queue. In data file handling, students should read all functions belonging to streams/header files including fstream(), ifstream() & ofstream(). Understand all the functions with respect to open a file, close a file, read & write a file. This helps your scores as every step in writing an answer carries marks. While performing output questions, take care while placing endl and special characters such as dot, colon, hyphen, etc. While attempting questions that involve theoretical concepts within C++, illustrate using an appropriate C++ example.
- Anita Ratan, Manav Sthali School, Rajendra Nagar

How I did it
Anurag Khanna scored 94% last year. “Stick to NCERT books and do not to put in too many hours a day studying. I didn’t study for more than 10 hours and made short notes from every lesson. This came in very handy,” he says

First Published: Feb 07, 2012 17:41 IST