Before following any teaching technique, it is very important to Learn the Learner and then to implement the teaching technique based on the learner's capability. Hence, I propose Learner-centered Teaching methodology [LCTM] or Student-Centric Teaching Technique [SCTT].
Abstract-Decentralised power generation in remote rural locations can be done using locally available biomass based renewable energy sources. A single cylinder stationary diesel engine was run in the neat vegetable oil (Jatropha oil) -biogas dual fuel mode to study the potential of this method of operation and also device simple methods to enhance the performance. Increasing the rate of pumping of the injected Jatropha oil and retarding its timing of injection resulted in considerable improvements in thermal efficiency and reduction in emissions. The smoke level at 60% of biogas energy dropped from 2.25 to 0.9 BSU, 2.15 to 0.6 BSU and 1.4 to 0.5 BSU with 7mm, 8mm and 9mm diameter injection pump plungers respectively. Further improvements in the combustion rate of the inducted biogas were possible with enhanced swirl level of the inducted air. At 60% biogas share the thermal efficiency went up by 8%, HC emissions dropped by 26% and smoke level dropped by 17% with enhanced swirl. On the whole, energy shares of biogas as high as 80% could be achieved with good engine performance.Index Terms-Alternative engine fuels, biogas engines, dual fuel engines, vegetable oil as fuel.
An attempt was made in the present investigation Mathematical Abilities among Class-III Students.
OBJECTIVES: To study the differences between boys and girls on mathematical abilities of class –III
students and to examine the differences between government and private school children on mathematical abilities of class-III
students. SAMPLE: The sample of the study consists of 120class-III children were purposefully selected form primary schools of
Rangareddy district of Andhra Pradesh. Tool: Mathematical abilities test was developed by the researcher. CONCLUSION: There
is no signicant difference in their mathematical abilities including all areas. Private school children are high level of
mathematical abilities in areas of subtraction, division, basic geometry than government school children. There is no signicant
difference in their mathematical abilities in areas of addition and multiplication
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