Read 500 words of interesting mathematics. During the summer vacation, I read a book called Interesting Mathematics. Perhaps out of professional habits, I am personally interested in mathematics. This book is very nice, and there are many fascinating magic tricks. Like topological transformation, interval equality, clock face mind guessing, etc., strange things that were originally at sixes and sevens and no one could understand were vividly written by it in plain language. After reading it in one breath, I really feel that interesting mathematics is really an interesting and knowledgeable book.
This book is one of "How to Teach the New Curriculum Well". The book is divided into four chapters: where mathematics textbooks come from, how to use them well, how to develop the new value of learning tools and teaching AIDS, and how to develop teaching resources under the network environment.
Chapter two, section one, "How to make students learn concepts in activities". I am very interested. In my memory, the study of mathematical concepts is rather boring, and almost all of them follow the teaching mode of "simple feeling-conclusion-variant practice-understanding concepts". This book advocates that the learning and construction of concepts mainly rely on students' independent and conscious inquiry activities. After the concept is formed, students' understanding and mastery of the concept will take root in their minds, and it can grow independently in suitable soil, instead of being "ripened" by teachers with a lot of practice. The example given in the book, about the teaching of "prime number and composite number", has a very good teaching effect by using the game method: let students prepare cards with their student numbers printed on them, write the factors of student numbers on the cards, and make headdresses to wear on their heads. In class, first communicate the factors of your student number and number. Subsequently, it is required to divide the numbers into two categories according to the characteristics of the factors in the group ... In addition, "self-made playing cards" (the number of cards is between 50 and 100, and each card only writes one number, which cannot be repeated) can be used to review the knowledge of the unit "divisibility of numbers".
The third part is "Reflections on Computing Teaching". And more attractive. In the usual teaching and research activities, it is almost difficult to meet the discussion of computing teaching. The traditional calculation teaching is often "correct calculation is the last word", "one example with one rule", "reading while remembering" and "reciting rules and practicing more questions". Therefore, over the years, teachers have been sighing, "I don't know how many times I have talked about this question. Why can't students learn?" A better way is to let students show their magic weapon in their minds, then give their own examples, try to understand the algorithm in calculation, and then sum up the calculation law through group communication. Compared with teachers or books imposing calculation rules on students, this feeling and understanding gained by students after the learning process is more conducive to improving students' calculation ability. For example, when teaching three-digit subtraction "300-97", we can make the "actor" show "300- 100+3" as an important plot by directing the sketch "What if I don't have change". In this way, students can find out the arithmetic of "more reduction and more increase" unconsciously while enjoying the process of "finding money" When dealing with students' calculation mistakes, we should not do things hastily because of their carelessness. Study groups can be organized to find out the causes of mistakes from the aspects of calculation mentality, calculation habits and calculation ability, and discuss improvement measures to make mistakes a paving stone for students' progress.
Generally speaking, this book is worth reading by primary school math teachers.
I read a book called interesting mathematics today. This book is good-looking, and there are many magic tricks. I have always liked mathematics, and this book is even more fascinating. Like topological transformation, equal interval, guessing the clock face, etc., strange things that were originally messy and no one could understand were vividly written by it in a simple way. This one is vivid and vivid. Is to make you popular in group activities. Some people who don't know the details often regard it as their own life. If they have a chance to perform, everyone present will applaud. If you shine at the party, it's strange that people don't envy you! Interesting mathematics is really an interesting and informative book, which is really good.
This book is one of "How to Teach New Courses Well". The book is divided into four chapters: where mathematics textbooks come from, how to use them well, how to develop the new value of learning tools and teaching AIDS, and how to develop teaching resources under the network environment.
Chapter two, section one, "How to make students learn concepts in activities". I am most interested in it. Learning mathematical concepts in memory is boring, and almost all of them follow the teaching mode of "simple feeling-conclusion-variant practice-understanding concepts". This book advocates that the learning and construction of concepts should mainly rely on students' independent and conscious inquiry activities. After the formation of the concept, students' understanding and mastery of the concept will take root in their minds, and it can grow independently in suitable soil, instead of being "ripened" by teachers with a lot of practice. The example given in the book, about the teaching of "prime number and composite number", has a very good teaching effect by using the game method: let students prepare cards with their student numbers printed on them, write the factors of student numbers on the cards, and make headdresses to wear on their heads. First of all, communicate the number of your student number and the factors of quantity. Then, the requirements are put forward: according to the characteristics of the factors in the group, the number can be divided into two categories ... In addition, there are "self-made playing cards" (the number is between 50 and 100, and each card can only write one number and cannot be repeated) which can be used to review the knowledge of the unit "divisibility of numbers".
The third section "Reflections on Computing Teaching" is also very attractive. In the usual teaching and research activities, it is almost impossible to meet the discussion about computing teaching. Traditional computer teaching is often "right is the last word", "extrapolate", "rote learning" and "practice more questions". Therefore, for many years, teachers have been sighing, "I don't know this problem. A better way is to let the students show their magic weapon, give their own examples, try to understand the algorithm in calculation, and then summarize the calculation rules through group communication. Compared with teachers or books imposing calculation rules on students, this feeling and understanding gained by students after learning is more conducive to the improvement of students' calculation ability. For example, when teaching three-digit subtraction "300-97", what if there is no change? In class, "actors" are required to show "300- 100+3" as an important plot. In this way, students can unconsciously understand the calculation principle of "reducing more and adding more" while appreciating the "change of money". When dealing with students' calculation mistakes, we should not be hasty because of carelessness. We can organize study groups to learn their calculation mentality and attitude.
Generally speaking, this book is worth reading for students.