Learning of Newton's laws of motion, students understanding the reason for the change of the state of motion of the object, I put a new lesson title changed to "explore the reasons for change in kinetic energy of an object", on the one hand, students' previous learning can be implied to have come to an end, and now we to explore the implication in the process of the movement of objects from another angle other law, on the other hand, told the students power and causality between the change in kinetic energy, and the relationship between the force and speed the rate of change of previously learned is similar , and the study of the relationship between various physical nature is the the physics main content.

Before learning this section, students functional relationship is not a very clear understanding, if you want the students analyze the relationship come to both considerable difficulty Moreover, students are only qualitative knowledge of the physical quantities of kinetic energy, only to know it and the quality of speed related so there should be direction to guide the students in theory to explore, to reduce the difficulty of experimental verification is the focus of this section on the basis of theoretical derivation, it is a good time to develop students' scientific inquiry ability, but also to consolidate the theorem of kinetic energy an important part of , teaching materials and guidance, limited conditions, suggested that students can only read about or watching a teacher demonstration can not be experienced, inevitably some regret To remedy this problem, this lesson designed to enable students with a free fall Verify increment equal to the kinetic energy of the gravity acting.

Given a certain amount of time for student research will have to be given if the students have difficulty Hint: which a physical quantity of force and motion? Enable students to comprehend to the acceleration of the contact force and the movement of the bridge.

Transition: regardless of the size of the displacement and the kinetic energy of it how to move to the left, such as: .

Regardless of the students talk about how well teachers should encourage, not too much negative defects of student programs, so as not to crack down on the students' enthusiasm, as much as possible the exchange of different programs.

If the students come up with have done experiments using marked point of the tape, study objects instantaneous velocity method for uniformly accelerated motion the process to help things along and then draw on the blackboard tape, review the average speed for a certain period of time is equal to the instantaneous speed of the intermediate time, write seek an expression of the instantaneous speed.

If no students came up with, prompts memories, have done what experiments can determine the speed In short, we must guide the students to take advantage of the point on the tape seeking instantaneous velocity, to prepare for the back of the hands-on labs.

Teachers to do the experiment in the student patrol solve the problems students encounter students can do experiments faster data processing on the spot, students can do experiments slow after-school treatment.

2. New Curriculum advocates scientific inquiry learning, but not equal to each lesson open exploration activities should be carried out according to the characteristics of the course content, the of guiding exploration activities and challenging exploration activities combined, so that students thinking Zhang relaxation, and can take into account the different levels of students to strive so that all students can experience a sense of accomplishment in various exploration activities.

Through the design of the course content and practice, I deeply appreciate the new curriculum teaching philosophy brings the fun of the teachers and students, our teachers always starting from the needs of the students responsible for the lifelong development of students, the rational design of the teaching process, and students happy to learn, exchange, and will be able to train a number of innovative sense of exploration, willing to challenge talents Links to free papers Download Center http://eng.hi138.com