Get your “CBSE Class X – Math” result on 11th March itself!!

Posted by TCYonline.com on March 9, 2010

CBSE class X students all over India will appear for their Mathematics board exam on the 11^th of March and will know the result on the same evening. TCY, India’s premier ‘Education Services Company’ will share the complete solutions of the CBSE Math question paper on 11^th March, 2010 evening. The solutions will be made available on steps.TCYonline.com initially, followed by a printed version in one of the leading newspaper in the state the next day.

Wherever different question papers are used, students will just need to log onto steps.TCYonline.com and click on the link for their geographical location to see the solved question papers. Another free service being provided by TCY is the facility of CBSE Math Mock Tests that will be on the website. As the students will be taking the exam for local language on the 8^th of March, they will have two and half days to revise their Math syllabus. The students will be able to utilize this time well by attempting CBSE Pattern Mock Tests on the website. The mock tests will be followed by a detailed analysis and explanations by TCYonline experts.

Tips for Final Revision of CBSE – 2010 Board Exams

Posted by TCYonline.com on February 9, 2010

It’s time for your upcoming final exams of CBSE – 2010. You all could be nervous about it. Every student has a different way of studying. Some students may actually do better while listening to music or studying outdoors; others find these environments distracting. Although preparation for the CBSE board exams should begin on the first day of the semester, there are many things students can do, to maximize their final scores:

1.    Students should divide their time according to their daily tasks especially when they are preparing for board exams.
2.    There should be a break after every 2 hours of studying.
3.    There should be refreshments in the breaks they take in their study schedules.
4.    Cell phones and other such devices should be turned- off. So that you should not get distracted when you are preparing for CBSE board exams.
5.    The student should be out of earshot of any computers, televisions etc.
6.    The place to study should be quiet and devoid of any distractions.
7.    Every hard or uninteresting subject/topic should be followed by any easy or an interesting subject/topic.
8.    Students should avoid doing ‘at stretch’ studies.

So, a planned study time-frame can minimize the stress and feelings of panic that may occur when you only have a few days before the exams.

CBSE Class XII Date Sheet 2010

Posted by TCYonline.com on December 29, 2009

CBSE-X Board 2010: Chemistry Preparation

Posted by TCYonline.com on December 8, 2009

As we know that CBSE – X exams are approaching, bringing with them the feeling of fear and nervousness. Although the grading system in class X Board – 2010 exams has helped the students a lot to fight this fear, yet the building of pressure in any exam is natural. Some students perform better under stress, while others totter as their poor nerves are stretched to the limit.

Adding to this, are subjects like Chemistry in CBSE exams – 2010, requiring the students to cram the chemical reactions and equations. Fumbling with nomenclature in carbon and its compounds, mugging up the extractions in metals and non–metals is observed in the students to an extreme extent.

To combat these issues and perform well in final board exam and also pre board exams, you should first of all be aware of the marking scheme followed by CBSE in board examination of 2010. This involves 3 very short questions carrying 1 mark each, 2 questions carrying 2 marks each, 2 short questions carrying 3 marks each and 1 question carrying 5 marks. There is no choice except the internal choice in the 5 mark question.

To equip you more on this, let us discuss deeper into a few problem areas in pre board and CBSE – 2010 Final Board examination, as given below

• Formulae of chemical compounds
• Electron dot structure of chemical compounds

1. Structure of carbon compounds

–This kind of question is generally of 5 marks in your board exam. If you are given the name of an organic compound, let’s say, Hexanol, and then simply split the name of the compound to draw its structure

Hex – an – ol

Hex – C-6

an – Single bond

ol – OH

and then simply draw the structure–

Let us take one more example to make it clearer –Butanoic acid

Again split the name of the compound into parts

But – an – oic acid

But –  C–4

an – Single Bond

oic acid –

O
||
C – OH
and then draw the structure as,

Chemical Compound

Now you can practice with as many numbers of examples you want

Another important thing for CBSE – 2010 exams that how to remember the formulae of chemical compounds:

Topic No. 2: Formulae of chemical compounds

– Never ever learn the formulae of compounds

– This topic is the base of Chemistry and comes across as a cumbersome problem. Maximum Chemistry questions in boards and pre–boards call for the clarity of this concept.

To make it easier for yourself, make a table of the valencies of various positive and negative ions.

This way you would be able to learn the valencies of various ions and then you would never need to learn the formula for any compound. Make the formula by the same general method of criss–cross valency as you did in Class IX.

® Electron dot structure of chemical compounds

For this sure shot question in your CBSE Board exams, you simply need to learn the atomic number of first 20 elements for which you can develop a mnemonics also.

Happy Henry Likes Beer But Could Not Obtain Food

So you can simply learn these by developing your own methodology. Write the electronic configuration for the element, and using its only valence shell electrons, draw the structure for it. Never write the inner shell electrons while drawing the structure.

e.g. Fluorine – Atomic number – 9

Electronic Configuration – 2, 7

We wish all of you to do well in your CBSE – 2010 Board exam and Pre–Board exams.

Trigonometry: CBSE 2010 Class X

Posted by TCYonline.com on December 6, 2009

Trigonometry – the branch of mathematics, dealing with six T–ratios is interesting. While it is a game for some to play with, it is head–scratching for others. But a little care can ward off all the unfounded fears of students, is opined by me.
In CBSE – 2010 Class X examination, trigonometry carries a weightage of 12 marks out of 80. It includes one question of 1 mark, one question of 2 marks, one question of 3 marks and 1 question of 6 marks.
The important topics in CBSE board examinations which attract the attention of the examiner for setting of questions are:–
1.    relation among six ratios;
2.    values of T–ratios of standard angles;
3.    complementary angle relations;
4.    trigonometrical identities; and
5.    heights and distances.
Taking topic wise, the questions asked from this section are very simple. Generally students memorize only one relation viz. (Sin)2 A + (Cos)2 A = 1 leaving the other two, which are equally important for solving a good number of questions. For CBSE – 2010 exams, students should practice some questions involving the usage of these two relations, which will certainly help to build confidence in them.
One question is based on the value of T–ratios of standard angle & complementary angle relations. Students get confused in memorizing complementary angle relations. An easy way is:
“Attach ‘Co’ to T–ratios without ‘Co’ & remove ‘Co’ from T–ratios with ‘Co’.”
e.g. Sin(90 – A) = Cosine A.
Cosine (90 – A) = Sin A

To solve such questions locate the pairs of complementary angle T–ratios. For example, for, 10 degree, 80 degree, 20 degree, 70 degree, 25 degree, 65 degree, etc. Change one of the T–ratios in terms of complementary angle. The final result thus obtained, will automatically cancel out, leaving the question in the most simplified form.

Here 70 degree, 20 degree; 36 degree, 54 degree; 43 degree, 47 degree; 10 degree, 80degree; 40degree, 50 degree make complementary pairs. Take note that only one angle is to be changed and not both. This method will work to solve the sum without any difficulty.
For trigonometrical identities, two types of questions are asked; one involving T–ratios other than Sin A + Cos A ; and the other involving questions with T–ratios within under–roots. For the first type of questions change T–ratios to Sin A + Cos A and solve them. For the second type of questions, rationalise the denominator, which will further simplify the question.
The most challenging portion for students in CBSE exams are the heights & distances question. To solve this question, the student should draw the diagram correctly keeping in view the various parameters given in the question. Most of the times, it is easy to find height/distance by using T–ratio “Cot A”. It makes the question simple and error–free. Secondly, equate the quantified relations to get results.

For questions involving reflection of cloud in lake water, keep in mind that image formed in water will be as far behind as the distance of cloud from lake water.

No student in CBSE – 2010 exams, aiming to score 80 marks can afford to ignore trigonometry. Anyways, it is not difficult to attain expertise if the questions are tried carefully keeping in mind the above suggestive steps.