Through analyzing several questions in fillet weld connections of steel structures, one effective idea for teaching is summarized: constructionjudgmentcalculation.Several practical measures are applied to help the teacher to take this course, such as teaching content, concerned the main, difficult and easy making mistake content, helping students clarify ideas and simplifying the course content from the complex to the streamline, real understanding the problems to extend application.The insights and experience given by the author in the paper are just for the peer teachers as reference.