Board exams 2015: 5 science-backed tips, guaranteed full marks

  • HT Education Correspondent, Hindustan Times, New Delhi
  • Updated: Feb 28, 2015 16:41 IST

Equations, laws, calculations, experiments… If you are appearing for CBSE Class 12 science exam, by now you’d surely know how important these are for you. Here’s what most of you say about science subjects: You have every chance of scoring good marks here, but the tough part is to overcome the mental block. It is this fear that builds pressure in the last few days of preparation, which goes with you to the examination hall.

We spoke to a number of teachers from schools across Delhi for their suggestions on the dos and don’ts of tackling the science exam. Of course, all of them unanimously said there is no replacement for revising NCERT textbooks, solving sample papers and devoting more time to important topics. The practicals, everybody said, should also be taken seriously as they make a lot of difference to the overall scores. Here are more tips:

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

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

Read the CBSE sample papers thoroughly. 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

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

Anurag Khanna scored 94% in 2012.
“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.

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