Activities to Teaching Electric Field Based on Physics by Inquiry  

作　　者：Manuel Sandoval Martinez Cesar Eduardo Mora Ley 

机构地区：[1]Universidad Politecnica del Golfo de Mexico, Tabasco, Mexico [2]Instituto Politecnico Nacional, Mexico City, Mexico

出　　处：《US-China Education Review(A)》2014年第10期743-749,共7页美中教育评论（A）

摘　　要：We designed and used a series of activities （named activities to teaching electric field （ATEF）） based on the Physics by Inquiry （PBI） strategy to teaching the electric field concept with university students. We used a concentration factor tool to assess the effectiveness of those activities used during three weeks of instruction. Results indicate that students who had traditional teaching obtained a very tiny gain （less than 1%）; concentration factors indicate that most of their responses fall into a random area, which is not favorable. On the other hand, the experimental group using our activities had greater gains （〉 10%） than the control group. Concentration factors showed that after instruction, students＇ mental models changed toward a favorable pattern about comprehension of electric field concept and Coulomb＇s law. A hypothesis test of two samples indicated that there is a significant difference between both traditional teaching and ATEF based on PBI.

关 键 词：activities to teaching electric field （ATEF） concentration factor Physics by Inquiry （PBI） 

分 类 号：O441[理学—电磁学] N4[理学—物理]