A Teaching Practical Study On Promoting The Development Of Chemical Analytical Thinking By Thinking Visualization

With the deepening of the new round of teaching reform oriented by “core literacy”,the thinking as “the core of core literacy” has been paid more and more attention.Analytical thinking is one of the most basic higher-order thinking,which is of fundamental significance for cultivating critical thinking,creative thinking,and improving problem-solving ability and decision-making ability.Researche shows that thinking visualization tools can present thinking methods and thinking paths,they have certain advantages in optimizing teaching effects and improving thinking.Thinking visualization teaching can be used to develop students' analytical thinking in daily teaching.This study focuses on the development of the middle school chemistry analytical thinking,investigates the present situation of visual teaching thinking,selects thinking visualization tools suitable for developing analytical thinking,summarizes thinking visual teaching strategy and then practice.It provides reference for cultivating and promoting the analytical thinking of senior high school students.The specific research path is as follows.Firstly,classify and sort the research of analytical thinking and its types,the cultivation and evaluation of analytical thinking,the theory of thinking visualization and its application by literature research method,so as to determine the direction of this research and lay the theoretical foundation for subsequent research.Secondly,investigate the cognition,application and attitude of middle school chemistry teachers on thinking visualization by questionnaire and interview,through the probe to promote the teaching of visual thinking and reflection,in order to better grasp the thinking visualization in the practical application feasibility of classroom situation and develop the best way to fusion with actual teaching.Then,according to the literature and Marzano's cognitive system theory on the content and skills of analytical thinking,select the thinking visualization tools which are suitable for the development of various analytical thinking and designe the specific operation process.Finally,according to the literature and investigation results,put forward and apply to educational practice the thinking visualization teaching strategy which is beneficial to promote the development of analytical thinking in high school chemistry teaching.The teaching effect of thinking visualization is evaluated through self-compiled analytical thinking test paper supplemented by school examination papers.The research conclusions are as follows:1.The cognition,application and attitude of the chemistry teachers of middle school to thinking visualization teaching are as follows: teachers lack the theoretical basis of thinking visualization;there are many difficulties in applying thinking visualization tools to chemistry teaching,including the difficulty for teachers with low usage rate of students and high teaching experience to use thinking visualization tools conveniently by multimedia technology,and have the difficulty in cultivating students' habit of using thinking visualization tools for learning;chemistry teachers are willing to try to use thinking visualization tools to teach.2.The thinking visualization tools which are suitable for developing all kinds of analytical thinking include: using the double bubble map to develop comparative thinking;using the tree map or concept map to develop classification of thinking;using the multi-flow map or fishbone diagram to develop cause and effect-error analysis thinking;using the flow map and brace map to develop generalized thinking.3.The thinking visualization teaching strategies to promote the development of analytical thinking include: using the “induction” function of thinking visualization tools to promote the construction of concepts;optimize the study of chemical principles with the help of the “add” and “distinguish” functions of thinking visualization tools;give play to the “reflection and sorting” function of thinking visualization tools to promote problem solving.4.Thinking visualization teaching practice that promotes the development of analytical thinking shows that thinking visualization teaching can improve students' academic performance and analytical thinking.The research results also suggest that teachers should give different degrees of tasks and guidance according to students' ability level in the training of analytical thinking,pay attention to guiding students to clarify the classification standards and pay attention to the relationship among core concepts,upper and lower concepts,parallel concepts and related concepts.