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##### Developing Deep Understanding of Mathematics Teaching

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**Developing Deep Understanding of Mathematics Teaching**LI Shiqi East China Normal University sqli@math.ecnu.edu.cn**Outline**• Background: General situation in China • Challenges: How to develop deep understanding of assessment in teaching • What to be focused in assessment? • How to assess? • Who do the assessment? • Summary**General situations of teaching**research activity (TRA) in China • There is a long history of teaching research activity in China • Originally, it was a school-based teaching exchanges , but now it is extended to national wide academic activity • There are some new trends developed**TRA structure: levels of TRA**• Parallel teaching group at every grade • Teaching research group at school • School district • Province / city level • Area level (Northeast, East China, etc.) • National level, organized by national academic societies or associations**Focus of TRA:**• Lesson planning • Teaching suggestions • Lesson observation • Discussion and reflection • … …**Aim: Improve practical teaching,**• Teaching objects, • Global Structure • Steps and procedures, • Teaching behaviors, • Students response & achievement then encourage education research**Forms of teaching research:**• Open lesson (公开课) • Model lesson (示范课) • Research lesson • Teaching competition • Lesson explanation (说课)**Challenges: How to develop deep understanding of assessment**in teaching • What? pedagogy focused / mathematics focused • How? qualitative / quantitative • Who? expert’s / teachers’**What: pedagogy focused/math focused**Belief: Math ideas and principles are the heart of math lesson. Between math and pedagogy, correct math is always put in the first place. Teacher must pay good attention to the math understanding and suitable treatment of teaching material. Some cases of teaching: • Teaching Sine Law with exploration • Situated teaching • Midpoint connectors: a teaching aid • Some evaluation forms**Case 1: Teaching with exploration**Process of teaching of Sine Law • Students were grouped and draw own triangles, measured its angles and sides; then computed some data such as: c/sin C，a/sin A, b/cos A, etc. • Some students report their results and fill them in a form**Doubt: Is there any vital problem in the process of teaching**design? Following teaching steps: • Teacher let students make conjecture, and he wrote the correct conjecture on blackboard • Next step: Teaching on to apply the law**Case 2: Situated teaching**“The minimum distance for fire fighting” A B C Doubt: How to set situation for teaching?**Case 3: Introduce the concept of midpoint connector of**trapezoid from the one of triangles**Case 4: Some improvements of indicators in evaluation form**for lesson observation • Form 1 • Form 2 • Form 3**How: qualitative/quantitative**Let qualitative and quantitative messages send suitable implications to teachers • A paper: Insight into mathematics teaching**Case: A quantitative ways of analysis: Questioning analysis**• A．Administrative Questioning • B．Mechanist • C．Remembering • D．Explanative • E．Reasoning • F．Criticizing**Questioning Analysis**• A. Administrative Questioning • Who has any new ideas about it? • B. Mechanist • How many auxiliary line are there? • C. Remembering • How did we prove it last time?**Questioning Analysis**• D. Explanative • What is “base side” and what is “the third side”? • E. Reasoning • Why do you draw such a auxiliary line? • F. Criticizing Why this is a wrong way? If so, what is your new suggestion?**Who: expert centered/teachers centered**• A characteristic: teaching researchers play an important role • Change the pattern of “Teacher teaching and experts comment”: Lesson explanation: self description and reflection (Huang) • Online learning and assessing by teachers • Yang: interesting research result: 3 rounds action learning — not so good as expected**A new trend: lesson explanation 说课**Teachers explain and reflect his/her own design of a lesson, its underlining ideas and related theories An example: Dr. HUANG Xinfeng’s work: The sum of the first n terms of an arithmetic series**For a general view, please read:**Peng,Aihui(2007): Knowledge growth of mathematics teachersduring professional activity based on the taskof lesson explaining, Journal of Mathematics Teacher Education, 10: 289 – 299**Another kind of teacher’s reflecting activity:Online**learning and assessing in Shanghai Videotaped lessons are put online every three months or so. Teachers are required to observe and write own comments and questions online as a course work. Teaching researchers will read such course work and send response to them. Every teachers who finish the work will earn their training credits.**A Case: Experts’ special research will give teachers more**insights into practical teaching YANG, Yudong (2005): Classroom Teaching Driven by Primitive Mathematics Ideas — An Action Research for Improving Mathematics Teaching, Journal of Mathematics Education (In Chinese), 14(2), 59-63.**Interesting finding: three rounds of teaching improvement**— not so perfect as expected • First round: teachers planed lesson and teach it himself —— there are some weaknesses • Second round: teachers improve their teaching with more comments and suggestions from experts etc. —— even less successful than the former one • Third round: teachers reflected their experience independently, adjust their lesson plan and teach again —— it seemed better and more successful**Summary: Complementary & interdependent ways make lesson**study assessing effective • Pay attention to both mathematics & pedagogy: keep right track of math teaching carefully • Apply both qualitative and quantitative evaluate ways: reveal and insight into the keys of teaching • Both experts and teachers do teaching assessment: improve practical teaching effectively