2021-06-12 00:18 未知
“数学课程标准”指出：“教师应该充分利用学生经历过生活经验。引导学生应用学习到现实的数学知识，现实生活中现实生活中的应用价值。然而，在过去的数学教学中， 我们经常只关注数学知识本身。并忽略数学知识的来源和发展以及数学知识与生活的关系。因此， 学生变得破碎的知识，未能形成完整的知识结构，特别是引入学生熟悉的生活场景和感兴趣的事情，让学生从数学知识中失去他们的感受，我逐渐影响学生对学习数学的信心。所以，我们必须让学生通过生活中数学教学来获得数学知识和方法。从而提高学生对数学知识的应用意识。
教师应充分利用学生经历过经验，指导学生应用学会学习的数学知识， 生产实践，为了帮助学生欣赏数学在现实生活中的应用价值。由于学生对问题的解决方案的创造力，因此， 数学课堂教学教师，应该建立生活方式的情况，合理地，设置适当的悬念，引导学生继续探索教师创造的生活形势的生活经验。让学生有一个与教师创造的生命感的后台材料，根据新课堂教学的要求，通过熟悉的背景来学习和体验知识的一代和演变，改变数学学习模式是一种不可避免的方式。例如， 当“轴对称图形”时，为了让学生觉得数学与生活之间的关系，老师设计了一种常识的生活意义 - “蝴蝶飞行， 跌倒“课件。在精彩的音乐中，屏幕上出现了一只色彩缤纷的蝴蝶， 鲜花中的一首小歌曲，翅膀都在一个地方落在花上，最后， 翅膀慢慢完全组合。这是固定的，提出第一个问题：你从中观察到了什么？为了更加出色的问题来观察，还故意设计与将蝶翼粘合到重复演示的过程中，然后提出第二个问题：其中包含哪些数学概念？这看起来及时看轴对称图形的概念。这自然引入了新的课程学习。这种实例为熟悉学生创造真正的场景，学生发现数学是我们身边的，学生在勘探活动中感受数学，实现学生的目的独立地以自己的方式建造，培养学生以观察数学的生活意识。学生还提高了数学知识的应用能力。
实践活动是数学学习的重要组成部分。教学我们应该结合学生和知识的实际经验，旨在获得有趣和有意义的活动，让他们更多的机会，从周围的东西中学习和理解数学，感受数学与现实生活的密切关系，因此，能够改善学生使用数学知识来解决实际问题。数学法则通常会发现实践中的问题， 提出猜测， 科学实验， 并展示猜测的过程。如果学生可以在数学教学中体验相同的实践活动，Students may discover and propose bold guesses and assumptions,on the basis of,Guide students to perform practical operations to verify.The students' practical ability has been improved.E.g,Seventh grade students after studying "rich graphics world",Design "Fighting Beautiful Draw" Operation Practice Cases,Let students use to learn,"Folding,Fighting,Cut a shears,Draw a painting,Say, "Series", "This is easy to develop students' image thinking,Cultivate students' imagination and hands-on ability.In addition, students should encourage students to fight different drawings.Let students seek sexual sex and innovative abilities, seeking new and innovative abilities.This will prompt math knowledge to cultivate students' application awareness of mathematics.
Third, explore mathematics problems in life practice
Mathematics comes from practice.Mathematics in life,Mathematics is also inseparable from life,The ultimate goal of mathematics is also specifically applied to life practice.Although our country has implemented quality education,But in our rural schools,The phenomenon of students' ability and poor hands-on ability, and the practical application ability is still very serious.They lack the correct concept of solving practical problems.Miscal understanding of mathematical knowledge from the right understanding of life.This also reflects that our long-term relationship is not strong in teaching mathematics and life.therefore,We must strengthen mathematics from life, for life,Pay attention to the knowledge of books and the actual life,Cultivate students' ability to flexibly use knowledge.Traditional math teaching,Teachers pay special attention to the teaching of knowledge,And very few concerns about these knowledge and students in actual life.Students learn mathematics knowledge,But it will not solve the practical problem related to it.Students are also not good at using mathematics vision to think about some of the problems in actual life.There created knowledge and life, knowledge and ability.So some students think that mathematics is too abstract, not easy to understand,It is not interested in mathematics learning.There are mathematics everywhere in life.It is also conducive to cultivating students' application capabilities of mathematical knowledge.
Fourth, solve practical problems with schooling mathematics knowledge
Tao Xingzhi also said: Everything must be effective through life.Education and life isolated,Its power is extremely small.Applying the knowledge learned to life is the ultimate goal of learning mathematics.Practical activities organizing students to use mathematical knowledge to solve practical problems are beneficial to bring the distance of knowledge and life,Integrate life and mathematics.E.g,In the geometric teaching,Traditional theorem teaching is generally given the prayer,Show graphics,Prove conclusion,This teaching model makes students feel boring.Theorem is not easy to remember.Here,This scenario can be designed in the teaching of a flat graphic: "How is the bicycle stopped?Have you seen a table at least a few feet?"Thereby making students understand the concept of the plane.And the three points of the non-collinearly determine the basic principles of a plane.These situations effectively enable students to participate in the agency inquiry process,And in the learning activities of constant conjecture, judgment, demonstration,Abstract spatial concept and theorem,I realize the essence of mathematical problems.Realize the formation of new understanding of students,You can also evoke students' innovative awareness.After the students have some mathematical knowledge,Let them apply these knowledge to solve some practical problems around them,They are very happy.therefore,Teachers are not only to teach students how to get knowledge,To make them use the knowledge you have in creatively solving some practical problems.This makes the students' cleverness to give full play,Personality is here to be promoted.So the teacher is in the process of teaching,Some "life" issues should be selected,Let students use the knowledge learned to creatively solve,This is one of the best ways to cultivate the ability of middle school students on mathematics knowledge.
"Strengthening the Teaching of Junior High School Mathematics Practices" (Network Resources).
"How to get mathematics into life" (Wang Yulan).
Source: 233 Net School Paper Center,Author: Wu Pingqiang
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