Research On Unit Teaching Design Based On UbD ——Taking "Fractional Equation" Unit As An Example

Unit teaching design is the key teaching design method advocated in the new curriculum reform.It pays attention to the overall grasp of knowledge learning and clarifies the whole unit teaching through the establishment of knowledge system.Understanding by Design(Ub D)is the theoretical basis for unit teaching Design and provides a framework for unit teaching Design.The unit of "fractions and fractional equations" is a key and difficult point in junior middle school mathematics course,and it is a very valuable topic for the research of unit teaching design,so it is meaningful to carry out the unit teaching design based on Ub D.This research mainly with "how to apply theory of Ub D fraction and fraction equation of unit teaching design and implementation of" the problem of,combining the theory of Ub D and relevant data carries on the unit teaching design,and then in the first-line teachers under the discussion of modified design scheme and implementation of unit teaching,based on the above study,the following three conclusions:(1)Grant · wiggins unit teaching design can be divided into clear expected learning outcomes,determine appropriate assessment methods and planning related three stages,the teaching process through discussion stage can be subdivided into "determine unit theme","clear in the cell concept","clear cell problem of the","unit teaching goal set","divided into class teaching";stage 2 is subdivided into "determining evaluation standard" and "design evaluation method";stage 3 is subdivided into four steps: "scene introduction","problem discovery","exploration and induction" and "consolidation exercise".(2)In order to accurately determine learning objectives,we should pay attention to the interpretation of curriculum standards,the determination of basic mathematical problems,basic mathematical concepts and basic mathematical situations in the whole unit,so as to help teachers define the priorities of teaching content and design teaching activities.(3)In the second stage,which is to determine the appropriate evaluation method,the teaching effect of the unit is evaluated from the three Ub D levels of "mastering knowledge and skills,understanding deep knowledge and applying knowledge to solve problems".Finally,it is found that high scores are obtained in all three levels.