Practice Research On The Teaching Strategy Of "Chemical Reaction And Energy" In Senior High School

For the first time in the new curriculum standard(2017 edition),the goal of cultivating students' core literacy in chemistry is proposed.Therefore,teachers should consider using chemistry teaching strategies to teach students to cultivate their core literacy in chemistry.Based on the knowledge content of “Chemical Reaction and Energy” and the students' questionnaires and interviews with teachers,this paper understands the teaching difficulties and studies the teaching strategies for chemical concepts,experiments and calculations in “Chemical Reactions and Energy”: Applying the triple characterization of chemistry to cultivate students' ability of macroscopic identification and microscopic analysis;Using concept maps to cultivate students' evidence core reasoning and model understanding of chemical core literacy;Using mind map to cultivate students' scientific inquiry and innovation consciousness The core of the chemical literacy.Using the triple characterization to conduct the experiment of the determination of the neutralization heat,the students do the experiments by themselves,feel the temperature changes,and cultivate the literacy of the macroscopic identification;the video plays the animation of the particle movement,which made the students intuitively observethe ion reaction and cultivate the literacy of its microscopic analysis;Using the macroscopic experimental phenomena and microscopic experimental principles of chemical symbols to facilitate students to fully understand the experiment at the macro-micro-symbol level;Using the concept map to teach the similar concepts in "Chemical Reactions and Energy",with "reaction heat" as the core.It will help students build knowledge networks,clearly show the connections and differences between concepts,and help students to develop evidence reasoning;Use mind map to summarize the calculation method of reaction heat,stimulate students' interest in learning while consolidating their knowledge,improve students' ability to analyze problems and solve problems,and cultivate students' scientific core literacy of scientific inquiry and innovation consciousness.