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Abstract: Based on the two classes taught himself conducted a questionnaire survey and data processing, visual display of the students in math class lectures variation of the efficiency is decreased after increasing a single peak curve. So effective and rational allocation of teaching hours forty minutes to improve efficiency of the classroom for a very important role. Forty minutes I will break the pattern for the 5 +5 +30, the two classes by a period of time in his trial, played a certain effect, this research for improving classroom efficiency, development of scientific has important significance.

Keywords: mathematics, research, teaching efficiency of a questionnaire survey

(a) of the questionnaire design

1, the survey: the seventh grade junior high mountain ridge (5) ( 6) The two classes; Objective: To increase understanding, improve teaching and learning;

2, request: Please answer truthfully according to individual circumstances; answers to questions 1-4 painted on the answer card, all the radio, [] (Note: the random number by the teacher)

questionnaire:

Question 1: to each lesson is divided into eight sessions, lectures by the efficiency (in particular attention the situation) for the evaluation were:

[1] the beginning of class -5 mins: A good general B C poor

[2] 6 分钟 -1 0 min: A good general B C poor

[3] 11 分钟 -15 mins: A good general B C poor

[4] 16 分钟 -20 mins: A good general B C poor

[5 ] 21 minutes -25 minutes: A good general B C poor

[6] 26 分钟 -30 mins: A good general B C poor

[7] 31 minutes - 35 mins: A good general B C poor

[8] 36 分钟 -40 mins: A good general C poor

B Question 2: Class sleepy is a common phenomenon, you, the cause of this situation is the main reason for accidental reasons

A

(S: I recently got a cold, eat some medicine, so ... ...)

B energy because

(S: Each course has a finish the job,coach sunglasses, non-stop at night but also burn the midnight oil, so, ah ... ... I'm tired!)

C content causes

(S: the content is boring, I do not know why learn these things? T: very wide range of mathematical applications! In fact, many things in you know its value, you may have missed. )

D teachers because

(S: If you have passion for school and then some humorous words and then some, lively atmosphere and then some, maybe, I do not sleep.

T: I have been trying to, you have to work hard ah!)

(b) statistical analysis

1, a class's attention

(1) data Summary: A A A A time rate of A B A A C A A + B A + B rate of the total number of 1-5 35 0.364583 0.833333 966-10 451 680 31 195 sub-64 0.989583 0.666667 9611-15 points 80 0.833333 15195 67 0.697917 0.989583 9616-20 minutes 9621-25 25 492 0.958333 59 0.614583 28 987 points 9626-30 sub-50 0.90625 0.520833 0.885417 9631-35 351 185 44 987 sub-43 0.90625 0.447917 9636-40 minutes 37 0.385417 431 680 0.833333 96 (2) Line:



Note: As graph, the horizontal axis represents time, vertical axis represents the percentage of the number of options, line A representative of the trend of choice.

(3) Data analysis: The results give us three o'clock obvious revelation:

① the beginning of class students can not concentrate, lead classes to fully aroused the interest of students;

② a class's attention is only one obvious peak;

③ many students shouted,

2, drowsy reasons related to the choice of

(1) Data Summary: Question Answer A A A B A B A rate rate rate of A C A C A D A D rate of the total number of issues 2 (reason) 30 0.32967 10 0.10989 5 0.054945 46 0.505495 ​​91 (2) pie chart:



(3) Data analysis:

cause of sleepiness on the class Students answer focused on the B (energy reasons) and A (accidental causes), indicating that most students are willing to learn from nature's.



II, 5 +30 +5 ​​

model describes the first part: the dazzling debut ----- 1-5 minutes after class.

This is the least focused the attention of students when, when the idea of ​​students after class also immersed in the joy of just being slapstick or still recite it on the class of a word, a variety of reasons After the bell rang in the preparation of students, not immediately calm down, into the world of mathematics to go. So, this time, I took in class the following arrangements:

1, with soft music to soothe the tension of students on a class, or to class of excited. In fact, inspired by the sound of music than the teacher's words Like Romance, home of the original landscape, snow, fantasy, With an Orchid, and so are relatively soft, light music, with some sedation. Normal time control in about a minute.

2, used with math-related games to attract students interested in mathematics. The first day I teach, when to the relevant chapter on the rational hybrid computing, I present four random cards to enable students to power and other operations using addition, subtraction method to count 24 points, made four general, teachers wanted a good lesson preparation before the four numbers which can be calculated in various ways, and encourage students to use different methods to try, or can be competition between the groups, or competition between the boys and girls so that their enthusiasm will be higher.

3, with a set of math problems to improve their attention.

subject content: previously learned knowledge points, preview content, error-prone questions, confusing questions and more.

the topic and principles: short and fine, should not have a long pain, upset title is too long for students, play the opposite effect;

amount due, usually 5 minutes to complete 4 to 5 questions, the amount of too much time not enough students to finish no sense of accomplishment.

different levels, points A, B groups, A group of base, B group increased. Groups are asked to do A, B group of students have the ability to do so.

Title commented: Option One: A set of answers from the student newspaper, to pay for; B group from the honors program to explain

II: the student work displayed on the projector, the selection of two comparison, a common mistake students can reflect and format of the lack of a clear to themselves, the answer is complete and true, to further emphasize the importance of the format.

Option Three: Group mutual approval. Good team leader assigned to determine the answer, then head of the marking and monitoring team members revised.

(Note: This work is very time-consuming in the initial implementation, the students actions inconsistent, and moving slowly,

this time for teachers to guide them how to operate efficiently, it will develop slowly habits)

4, with a vivid cited cases to guide students into a new lesson to learn.

5, with a joke or a story to catch the attention of students and ears. Especially in the afternoon when the boring math class students often could not get a lot less interest, so sometimes a joke to win the goodwill of the students can serve a good idea.

Part II: the process of exciting ------ 5-35 minutes after class

this part-time students gradually increased attention to the moment, but there is also the peak concentration In this period, so the focus of the knowledge of a class taught on the most effective this time.

1, mode of operation: training talk with the students independent research, cooperative discussions.

Here is a guide students to self-inquiry process:

teachers learning how to guide students to explore, I can give an example for readers to explore.

sample questions: A, B two stores sell the same goods the same, and they each offer different programs launched: the purchase of a total of 100 goods store, then purchase of goods by 90% of the original price fees; the total purchase of 50 B goods store, then buy 95% of the original price of goods charged by the customer how to choose the shops to get more concessions?

learning situation analysis: This is the seventh grade textbooks, the practical problems raised by the students for this problem is rather complicated, where to start consider? What kind of mathematical methods to solve? Key in the

of study of law: Reflections on the complex issues, from simple problems began, from simple to complex, Deep, simple problems can be their own assumptions.

such as: purchase of 40 yuan, 80 yuan, 140 yuan, 160 yuan and other commodities, enumerate, by simple arithmetic calculation, the results can be derived by comparing the further found that the rule: When the amount of increase in purchase of goods to a certain extent, a shop to enjoy the preferential treatment than B stores. What is the value to some extent it? Assumptions can think of unknowns and

teaching design:

into context. Discount shopping is a common phenomenon in life. Start with the things around you, to seize the existing sensory materials.

questioning techniques. Into question commonly used method is the problem. For complex issues, difficult issues, not directly, should be based on the current level of awareness, from easy to difficult, progressive approach to design a series of questions, such as the design of the sample questions:

(1) If the purchase of 40 yuan of goods, A and B two stores which is more favorable?

no two stores offer, without calculation,abercrombie jeans london 百度网站, students can answer, and the atmosphere lively.

(2) If the purchase of 80 commodities, A and B two stores which is more favorable?

A no, B there, can answer, and the atmosphere lively.

(3) If the purchase of 140 commodities, A and B two stores which is more favorable?

can not be directly compared, the students began to think, calculate, compare the results of the students answered.

(4) If the purchase of 160 commodities, A and B two stores which is more favorable?

students will first be compared to the teacher after the summary specification formula.

(5) the purchase of goods in excess of a value, a shop with greater benefits than the B shop, how to find the value?

set cumulative shopping χ (χ> 100) million, compared with B in a store shopping shop to spend small.

a store shopping to spend: (χ-100) × 0.9 + χ (yuan)

B store shopping cost: (χ-50) × 0.95 + χ (yuan)

column inequality: A shop to spend 150 ( million)

This means that when more than 150 yuan total shopping, shopping in a store to spend small.

2, note that: (1) fast paced, not to prosperity and procrastination. Math teacher would neat, crisp and not repeating.

(2) courseware design is reasonable, not too much volume. Thirty minutes to talk to practice, so selection of refined

Part III: the perfect punctuation ------

the last 35-40 minutes of the last period of time, attention of the students began to decline, just thirty minutes a high concentration of spirit, then the state will start to show fatigue, so do not be arranged, and commented on the high intensity exercise. To say more, trained more futile, even if not yet completed the task of teaching and do not do struggled, and then the teaching of students can be absorbed only about 40 per cent or so. I like this arrangement the two classes in this period:

1, familiar with the books, return books. One class down, is operated by the media, students may not even have time to read, the knowledge points in the book do not know where, so let the students learn to read, and when after class to read a book and then , there will be a wake up feeling, students suddenly realized,mens true religion shorts Automobile Institute of,

2, self-reflection, sentiment improved. In the earlier fast-paced lecture, each student can have one hundred percent accepted, and more or less, there are some loopholes, some revisions had a chance to practice, some examples do not understand the problem and so, after class will not be so conscious of trying to compensate for loopholes to be busy with homework, so the last time, this time leaving a blank, so that they better Bubu these vulnerabilities, to deepen the impression of these knowledge points, a better understanding of the thinking and problem solving process.

3, games classroom,abercrombie and fitch outlet, educational and entertaining. Knowledge of the point of this lesson compiled some games. If imitation Li Yong of the Lucky 52 section, Awards may be some small things, such as bookmarks, book clip and so on. Punishment is the answer to one with complete knowledge of the subject of this section. Games like this, students still willing to participate.

4, music ending, tail echo. In the slow music, showing the main thrust of this lesson as well as some mathematical ideas or a bit more, add some philosophy of life, etc., to give students a sense of this course is true.

Third, the test of practice the truth: 5 +30 +5> 40

two of my own class will be tested this model for about three months from the start encountered many problems. As is often able to fulfill the teaching mission, the game came back after playing hard, spend too much time commenting, etc., in the middle many times I have wanted to give up, but I still firmly believe that the feasibility of this theory. So I continue to improve courseware, and constantly guide the students in the classroom how to operate, gradually, the students get started, the whole class down, to do basically done. For students interested in math class is also great, especially after a few tests, some students feel more confident about the results from mathematics, more active in class more seriously, this is a virtuous circle.