Jiangsu education publishing house, the fourth grade, the second volume of science teaching plan.

Science teaching plan for the fourth grade of primary school (Volume II)

I. teaching material analysis

The fourth volume (the second volume) is mainly about the life world and materials science. The purpose of textbook arrangement is to let students experience the basic characteristics of scientific inquiry: problem-hypothesis-verification-conclusion, which is no different from the work of scientists. It can be said that every student is a scientist. Students personally experience the whole process of scientific inquiry, gain scientific knowledge, increase their talents, experience the fun of scientific inquiry and understand the true meaning of science. This is also the real spirit and connotation of science class. This semester, students explore the nature and relationship of things, and arrange five teaching units: bones and muscles, rearing of silkworms, movement of objects, omnipresent force, investigation and prediction. From the level of inquiry, it is still based on guiding inquiry, and gradually transitions to guiding inquiry, laying the foundation for future independent inquiry. This semester's scientific inquiry involves comparative experiments for the first time. Teachers should carefully guide and specifically guide the operation methods, lead students through the scientific inquiry process of "predicting, designing and conducting experiments, sorting out and analyzing the collected evidence, expressing and communicating", and guide students to learn to control variables. From the process and method, on the basis of observation and measurement, we should learn to assume and collect evidence. In the process of collecting evidence, we should learn to compare, classify, summarize and summarize the collected evidence with understanding thinking, and form conclusions and explanations on this basis to verify our hypothesis. Cultivate the scientific spirit of bold assumptions, careful experiments and respect for facts, dare to clarify their own views, listen to and respect other students' different views with an open mind, comment or question, reflect on the cooperative inquiry attitude of improving their own inquiry process, and let students know that science also needs to be enjoyed.

The first unit "Bone and Muscle", the teaching material is designed to study the relationship between them through the exploration of activities such as touch, simulation and modeling, so that students can understand the movement functions of bones, joints and muscles, their own movement mechanism and health care knowledge of the movement system.

The second unit, Sericulture, allows students to experience a complete sericulture process, observe a complete life cycle, feel the magic and greatness of life, and realize the hardships they have paid for sericulture and the happiness of successful sericulture (related to the planting in the third grade), which has great benefits in knowledge, emotion, attitude and methods. After the sericulture activity, teachers should organize a sericulture activity exchange meeting for students.

The third unit "the movement of matter" selects the "movement" content that can be directly felt in mechanics. Through a series of inquiry activities, let students know that motion is one of the basic laws of matter, and judge whether an object is moving by reference objects. They can look at the movement of an object from different angles, learn simple quantitative observation and learn to look at problems dialectically. This unit uses the method of controlling variables to explore the factors that affect the speed of car movement and pendulum speed. This is a leap in students' inquiry ability. Teachers should give specific guidance to students' inquiry methods, so that students can know that in order to ensure the fairness of the experiment and the fairness and objectivity of the experimental results, some conditions in the experiment cannot be changed, and some conditions need to be changed, but only one condition can be changed at a time. In the process of inquiry, students are required to make bold assumptions, plan carefully, operate carefully, observe carefully, respect facts, make original records and speak with data. The teacher's role changes from "helping" to "helping" and gradually to "letting go".

Unit 4 "Ubiquitous Force" constructs a knowledge system around the existence, performance and function of force, where the force is, the shape and direction of object movement, the magnitude and elasticity of force, the gravity, friction and resistance of gas and liquid of the earth, and guides students to understand and deepen the abstract concept of force through the exploration of gravity, friction and resistance, and solve practical problems in daily life by combining what they have learned.

Unit 5 "Investigation and prediction", investigation and prediction are the basic methods and skills of scientific inquiry, so students should know under what circumstances investigation should be adopted and what are the commonly used investigation methods; Prediction is to make a scientific guess about the future of things, and the prediction should be based on this.

Second, teaching suggestions:

1, rational use of teaching materials. The textbook is provided by the textbook writing group, which has strict logic, thought and structure and is the crystallization of the collective wisdom of the writing group. However, it is undeniable that it is difficult for textbooks to take into account the specific learning situation of students in different regions, so teachers should flexibly adjust the teaching content according to the actual situation in the region. Fourth, Bones is scheduled for February. In the cold climate, students wear heavy cotton-padded clothes, and it is difficult to perceive bones and muscles by touching them. "Silkworm rearing" is also greatly affected by the temperature. It is suggested to postpone these two units, teach the third and fourth units first, and then teach the first and second units when the temperature rises. It should also be noted that sericulture takes a long time and it is difficult to complete teaching in a short time. Teachers should guide students to make a good sericulture plan and write a good sericulture diary. Teaching is interspersed in other units, observation diaries are exchanged regularly, periodic evaluations are made in due course, and finally an exchange meeting on sericulture experience is held to comprehensively summarize the sericulture harvest.

2. Strengthen academic exchanges. Silkworm rearing activities last for a long time, which requires students to invest a lot of energy. In the current educational reality, teachers and parents who come to talk about mathematics and English by themselves will certainly encounter resistance. Science teachers should communicate with the class teacher more, combine sericulture activities with composition teaching, and usually ask the class teacher to guide the children to write sericulture diaries. When silkworms spin cocoons, they can also concentrate on observation in the composition class and then write a composition. While cultivating children's scientific inquiry ability, it also improves their composition level, which is a win-win good thing. The attention and active participation of the class teacher can minimize the resistance of all parties to sericulture activities.

3. Teachers should "explore in water" before students. Students are the main body of science learning, and learning science is the process of students' active participation and initiative. Teachers are only organizers, leaders and close partners of scientific learning activities. Teachers' "teaching" should be based on students' "learning", serve students' learning and give full play to students' subjectivity. This semester's textbooks put forward higher requirements for students' inquiry ability "learn to control variables", so teachers should be pioneers of scientific inquiry and experience, experience and discover before students. See science with children's eyes, experience science with children's hearts, understand their surprised and naive thinking, understand their personalized expression, and truly "squat to teach science." Teachers' "exploring in the water" can get rid of the disadvantages of "sitting and talking" in the past. In the preset situation, teachers play the role of learners, putting themselves in the shoes to explore the depth of water and the difficulties of the road. Teachers can make an appropriate developmental evaluation of students' emotional attitude according to their experience in exploring in water.

4. Guide students to explore like scientists. Stiffness is one of the striking signs of science. Stiffness shows that any scientific conclusion needs to be based on facts, and no scientific conclusion can exist without the support of facts. In the process of learning "car movement" and "pendulum", students began to collect evidence by "controlling variables". Teachers should clearly ask students to make original records, pay attention to keeping them, and don't arbitrarily alter the data. Each experiment needs to be done more than three times to get the median or average, which will be adopted by the whole class. Perseverance is one of the excellent qualities that scientists must possess. Scientific inquiry is a very hard work, which requires the perseverance of researchers. Teachers should tell students that sericulture is a long-term activity that requires their efforts. Students should be encouraged to choose their own topics and carry out some exploratory activities in the process of sericulture. Teachers should praise and encourage them regularly. Persistence is victory. Exercise your ability and cultivate your will through activities.

5. The evaluation of students should be scientific, objective and fair. The standard of student evaluation is the improvement of scientific literacy, which fully reflects the actual learning and development of students. The evaluation of students should avoid emphasizing knowledge over process and emphasizing scores over ability. Examination papers are not the only way to evaluate students. Scientific diaries, scientific experiment reports and scientific achievements display can be used as important references for evaluation. Practice has proved that students who perform best in scientific inquiry are often poor in Chinese and mathematics, and science teachers should not be disturbed by them when evaluating them.

Third, the progress of teaching.

Explanation on the teaching content and class arrangement of weekly dating

12.6 ~ 2.7 Prepare lessons on February 6th.

2 2.8 ~ 2.141.1bone 1.2 joint

3 2.15 ~ 2.21.1.3 Muscle 1.4 Bone and muscle health care

4 2.22 ~ 2.28 unit evaluation 2. 1 sericulture bar.

5 3. 1 ~ 3.7 2.2 Keep a diary for the silkworm baby (2 class hours)

6 3.8 ~ 3. 14 2.3 let's figure 2.4 sericulture experience exchange meeting.

7 3. 15 ~ 3.2 1 2.4 sericulture experience exchange meeting 3. 1 Everything is in motion.

8 3.22 ~ 3.28 3.2 Motion speed 3.3 Motion mode

9 3.29 ~ 4.4 3.4 car movement is Qingming holiday.

10 4.5 ~ 4.113.4 the movement of the trolley is 3.5 pendulum.