**Evaluation Scheme **

Time Allowed : 3 Hours |
Max Marks: 30 |
---|---|

Two experiments one from each section | 8+8 Marks |

Practical record [experiments and activities] | 6 Marks |

Investigatory Project | 3 Marks |

Viva on experiments, activities and project | 5 Marks |

Total |
30 marks |

As you may have completed the practical record and project by the time of practicals, let us focus on the experiments. There are two experiments, one from each section - Section A and Section B.

**SECTION–****A **

**Experiments**

- • To determine resistance per cm of a given wire by plotting a graph for potential difference versus current.
- • To find resistance of a given wire using metre bridge and hence determine the resistivity (specific resistance) of its material.
- • To verify the laws of combination (series) of resistances using a metre bridge.
- • To verify the laws of combination (parallel) of resistances using a metre bridge.
- • To compare the EMF of two given primary cells using potentiometer.
- • To determine the internal resistance of given primary cell using potentiometer.
- • To determine resistance of a galvanometer by half-deflection method and to find its figure of merit.
- • To convert the given galvanometer (of known resistance and figure of merit) into a voltmeter of desired range and to verify the same.
- • To convert the given galvanometer (of known resistance and figure of merit) into an ammeter of desired range and to verify the same.
- • To find the frequency of AC mains with a sonometer.

**SECTION–B**

**Experiments**

- • To find the value of
*v*for different values of*u*in case of a concave mirror and to find the focal length. - • To find the focal length of a convex mirror, using a convex lens.
- • To find the focal length of a convex lens by plotting graphs between
*u*and*v*or between*1/u*and*1/v*. - • To find the focal length of a concave lens, using a convex lens.
- • To determine angle of minimum deviation for a given prism by plotting a graph between angle of incidence and angle of deviation.
- • To determine refractive index of a glass slab using a travelling microscope.
- • To find refractive index of a liquid by using convex lens and plane mirror.
- • To draw the I-V characteristic curve for a p-n junction in forward bias and reverse bias.
- • To draw the characteristic curve of a zener diode and to determine its reverse break down voltage.
- • To study the characteristic of a common - emitter
*npn*or*pnp*transistor and to find out the values of current and voltage gains.

**The key to scoring those 30 marks lies in these two sections. Focus on these experiments, prepare well and earn full marks with ease!**

A goal can be anything, from learning a new chapter within a week to passing a model exam with 95%. But goals cannot be set blindly. They have to be split as long-term, short-term and daily goals. For instance, if you want to complete learning and understanding the first six chapters in a text book thoroughly in one month, it is a relatively long-term goal. You can split those 30 days in a month as 6x5 days. Every five days, you should have completed one chapter - that is a short term goal. If a chapter has 12 pages, in one day, you should have covered two pages - that should be your daily goal. This way, you can study systematically and track your progress.

If a goal is attained, it becomes a morale booster; if not, it is a big source of demotivation. So, it is essential to learn how to set an attainable and realistic goal. For that, you should be aware of your own capabilities. If you can learn and understand two pages on your book per day, your goal should not exceed that limit, and your long-term goal should be based on that only.

Work while you work, play while you play. It is essential to take breaks and do things you like everyday. Make time for them in your daily schedule. Take them into account while setting the goals. If attaining your goals makes you sacrifice things you like and study continuously without breaks, then it will add stress, reduce your concentration, and ultimately stop you from achieving your goals.

]]>**COURSE STRUCTURE - CLASS 9**

Units |
Unit Name |
Marks |
---|---|---|

I | NUMBER SYSTEMS | 8 |

II | ALGEBRA | 17 |

II | ALGEBRA | 17 |

III | COORDINATE GEOMETRY | 4 |

IV | GEOMETRY | 28 |

V | MENSURATION | 13 |

VI | STATISTICS & PROBABILITY | 10 |

You can notice that Geometry, Algebra and Mensuration account for 58 marks in 80. So, make sure you give these three topics the maximum time. That does not mean that the other three lessons are any less important.

This is just a pointer to help you identify and study what matters and score more.

In Class 9 Mathematics, out of the total 100 marks given at the end of the academic year, 20 accounts for internal assessment. It means, if you are systematic in doing your homework, unit tests and submissions, then you can easily score a 20 here.

INTERNAL ASSESSMENT |
20 Marks |
---|---|

Periodical Test | 10 Marks |

Note Book Submission | 05 Marks |

Lab Practical (Lab activities to be done from the prescribed books) | 05 Marks |

Make sure to keep this as a ready reckoner and invest more time in the more important lessons.

]]>There are many effective methods of learning. Some of them are listed below.

1. Reading and rereading

2. Underlining the main points

3. Reading and then taking brief notes

Various studies conducted conclude that ‘option 3’ is one of the best methods.

After reading a lesson or part of the lesson, make a point by point summary of what you have read. From this, you can further pick out the most important point(s). Then you make a brief note in your own words.

This is one of the best ways to study. Try it out. Through practice, you will improve your ability to make brief and effective notes. It will help you study what matters and score more.

]]>• Practice or go through previous year question papers.

• Have a study time everyday and an equal amount of revision time (6 hours study time and 4 hours revision time).

• Use your own notes/ short notes/ formulae notebook to revise, and make sure you do a systematic revision of all topics.

• Avoid group study during the last few days.

• Take rest and breaks in between studies.]]>