Research On The Types Of Worked Example On The Teaching Effect Of The Mathematical New Definition Questions In Grade Eight

As a kind of innovative questions,the new definition questions can better show the real level of students’ mastery of knowledge and skills,and meet the needs of the selection of entrance examinations.At the same time,the new definition questions also have great learning value,which can promote the development of students’ higher-order thinking ability,construction and development of mathematical core literacy.How ever.students generally have obstacles when they solve the new definition questions.such as unclear review of questions,difficulty in understanding the new definition,and unable to flexibly use the knowledge learned when solving the new definition problems.Some teachers do not pay enough attention to the teaching of the new definition problems.Through literature reading and teacher interviews,it is determined that using worked examples as an important point of penetration.Based on the cognitive load theory,quasi-experimental research is intended to explore the effectiveness of worked examples for students to learn new definition problems.On this basis,this article further studies the impact of different types of worked examples on students’ learning results.Judging from the overall test scores and the data of the cognitive load scale.students who use examples to learn new definition questions perform better in the process of problem solving,and more logically and standardizedly in the process of solving problems.Further analysis found that the advantages brought by complete worked examples in simple questions and intermediate questions are more obvious.students have higher problem-solving ability,and the cognitive load generated is lower.Students with higher level of prior knowledge learn more in incomplete worked examples.Therefore,choosing a reasonable teaching method plays a vital role in students’learning of new definition problems.Teachers should understand students’ learning difficulties and clarify students’ current knowledge level,provide suitable learning method to help students improve their comprehensive ability and build core literacy.Finally,according to the conclusions of the research,relevant teaching suggestions are put forward.1.Design rigorous worked examples and accumulate knowledge and experience from worked examples;2.Emphasize independent learning and attach importance to teacher guidance;3.Summarize problem-solving rules and refine mathematical ideas;4.Consolidate the knowledge base and focus on ordinary times.