Quality of TEACHERS

         What is meant by TEACHER?

T = Truthful /Terrific (Awesome)

E = Energetic (Lively, Active)

A = Amiable (cordial, Friendly)

C = Confident (Solid, Self-reliant)

H = Helpful / Hilarious (Funny)

E = Enthusiastic (Excited, Passionate)

R = Radiant (Healthy, Happy).

         Relation with students’

§  Be interested in and try to understand students’ problems & Solve.

§  Be patient when students ask questions

§  Answer all questions to the student confidently

§  Introduced yourself to the class effectively

§  Control your temper at all times

§  Maintain sufficient reserve

§  Refrain from over-familiarity with students

§  Commend good work and attitude of students

§  Encourage students to ask relevant questions

§  Ask students for their reaction to your instruction

§  Judge a student objectively – not on his past record.

          Professional qualities of Teachers’

•      Keep constructive suggestions to improve instruction

•      Keep up; do not neglect professional training

•      Be able to do the work yourself and do it well

•      Attend to administrative work during school hours.

           Ethical character

·       Refrain from spreading rumors

·       Be loyal to your organization

·       Refrain from making uncomplimentary remarks about others

·       Refrain from making references to politics or religion

·       Measure your success on present ability, not on past performance.

            Personal qualities of a Teacher

·       Be honest and self-reliant

·       Have good poise

·       Show initiative

·       Be sincere and punctual

·       Be resourceful, and tactful

·       Be courteous and avoid distracting gestures

·       Keep physically and mentally fit

·       Be accurate on report and marks

·       Understand and carry out all rules and regulations.

               Personal appearance of Teachers’                  

·       Keep face clean, be well shaven and keep hair neatly combed and cut

·       Keep shoes shined

·       Keep a good posture (attitude, position)

·       Keep clothes clean and neat,keep vary clothing as often as possible &      wear proper clothes for work performed     

·       Refrain from eating or chewing during class time

·       Keep hands and finger nails as clean as possible and keep teeth clean and in good repair.

                  Pedagogical qualities

·       Start and finish lesson in time

·       Use varied teaching aides

·       Make the lesson simple and comprehensive

·       Use lesson plan

·       Motivate the students

·       Speak normally and use soft vocabularies

·       Use different teaching methods and techniques

·       Present the materials unit-wise and maintain the sequence

·       Make eye to eye contact

·       Maintain classroom management and  discipline

·       Give chance to participate the students’ in the lesson

·       Cite live or need-based examples

·       Cite the name of references

·       Avoid domination

·       Summarize/recapitulate the lesson

·       Clean the board before leaving the classroom

·       Knows subject matter very well

·       Be sympathetic on the students

·       Communicate effectively

·       Maintain the academic rules and duties

·       Provide the knowledge on safety rules and precaution

·       Provide child friendly environment

 

               Pedagogical qualities

          Diagnosis the common problems of the students’

·       Provide threat free environment

·       Keep knowledge on preparing the exam questions

·       Keep knowledge on scoring the exam scripts

·       Update knowledge with new information

·       Do hands-on practice to achieve the new skills

·       Use text book (some new text books) to teach

·       Evaluate your own teaching by your student

·       Check the condition of learning of the students

         Pedagogical qualities

·       Identify learning difficulties those are common

·       Find out learning style of the students

·       Identify learning preferences of the students

·       Care of learning needs of the students

·       Share your learning experiences

·       Learn how to learn.

         Conclusion

“A quality Teacher is not born but made”

   Thanks for Visit.....                    

Valve Timing of Engine

Valve Timing

Let's show piston motion as a circle. Each stroke is shown as semi circle. Intake valve open at Top Dead Centre (TDC) and closes at Bottom Dead Centre (BDC). Exhaust  valve open at Bottom Dead Centre (BDC) and closes at Top Dead Centre (TDC). A few mixture induce the cylinder. In practice the intake valve usually open early before the piston reaches top dead centre and stage open a little first bottom dead centre. The exhaust valve opens a little first before the piston reaches bottom dead centre and stage open a little of the top dead centre. Valves actually open and close can't imagine by angles. To make this angles easy to read.

Fig : Valve Timing Diagram

 Let's use spiral instead of a circle. This intake valve open 12° before the piston reaches top dead centre and closes 40°  after bottom dead centre. The exhaust valve opens 47° before bottom dead centre and stage open until 21° first top dead centre. This gives exhaust gases more time to leave. By the time the piston is 47° before bottom dead centre on the power stroke. A little power is lost by leaking the exhaust gases have more time to exit.

 

When an intake valve opens before top dead centre and exhaust valve opens before bottom dead centre, it is called LEAD. When an intake valve closes after bottom dead  centre and exhaust valve closes after top dead centre, it is called LAG. Before the end of exhaust stroke the intake and exhaust  valves are open at the same time for few degrees around top dead centre. This is called Valve Overlap.

Various Engines use different valve timing. Manufacturers specification contain the exact information.