Teaching Exploration For In-depth Review Of Elemental Compounds In The Preparation For Senior Three

The knowledge of elemental compounds accounts for a large proportion of the review and preparation for the college entrance examination for senior three students,for whom doing a good job of reviewing the knowledge of elemental compounds,the basis of core theoretical knowledge such as oxidation-reduction reactions and ionic reactions,is crucial…Therefore,it will be of great benefit for students to prepare for the college entrance examination by doing well in the second round of review and thinking improvement of element and compound knowledge.Besides,the properties and uses of iron,copper,aluminum and their compounds are of great significance to the development of human society,so the examination of their properties often appears in the college entrance examination,such as chemical process questions,multiple-choice questions,and experimental questions;and the elements and their compounds in the examination of oxidation-reduction reactions,ion reactions,and experimental parts are very representative.Considering the college entrance examination paper in recent years,examinations in element-related knowledge are often involved,and doing an in-depth review of elements is an important topic.Among them,the properties of iron and its compounds frequently appear in examinations,and an investigation into the teaching strategies of iron and its compounds in the review is of great significance.In-depth review based on the core literacy of chemistry disciplines f o r chemistry teaching i n s en i o r t h r ee can realize the integration and improvement of knowledge and ability,and develop the core chemistry of students in addition.This article formulates the learning objectives of iron and its compounds based on the requirements of the college entrance examination syllabus,chemistry curriculum standards,and core chemistry of chemistry.According to the students’ learning situation and school teaching practice,the review plan is designed with iron and its compounds as the review theme: first,create a real scene.Take the exploration of in toner as an example.It stimulates students’ interest in learning,raises challenging questions for students,and guides students to recall the properties and uses of iron and its compounds.This way,students can construct the transformation diagram between iron and its compounds and then,by taking the mutual transformation of iron related substances as the main line,design the mutual transformation and preparation of iron salt and ferrous salt,and that of iron hydroxide and ferrous hydroxide.The whole process will allow students to devote themselves to the exploration,so that the students’ subjectivity can be fully displayed.And it can let the students discuss and design feasible experimental schemes through group cooperation and experimental operations to improve experimental schemes and other links,and cultivate students to explore high levels of experimentation.Meanwhile,students can develop advanced thinking ability,integrated knowledge,deep understanding and establish the integrity of knowledge so as to implement and develop the core literacy goals of chemistry;third,design the real industrial production process based on the real questions of the college entrance examination,analyze and guide students to construct the process flow model,turn special cases into general question types,and then apply the model to industrial process problems of other elements and compounds to solve practical problems and cultivate students’ ability to construct thinking models.Furthermore,by means of discussion,students are able to establish the element compound review teaching model and strategy,integrate the content of the element compound examination through the real situation or practical questions,implement the construction of the element compound knowledge network,and have a good understanding of the basic knowledge.Ask challenging questions,guide students to devote themselves to leaning through experimental exploration,group cooperation,etc.During the learning process,through microanalysis,experimental operations,model construction,curve representation and so on,increase students’ cognitive angles,improve their comprehensive thinking ability,and integrate immediate evaluation.In the process of solving problems,continue to deepen and break through the key and difficult points of relevant knowledge of elemental compounds,contact the real-life questions of the college entrance examination,apply the solution model constructed by the element compound review to solving the problem,and finally achieve the dual effect of knowledge sublimation and literacy development in the review.The theme-based in-depth review strategy of element compounds is based on the core chemistry of chemistry,breaking the traditional review mode combining simple induction and lectures in the college entrance examination and making the review in senior three more timely and innovative,in accordance with modern education theories.In brief,it is an efficient way to review for senior three students.