2.2 distance against time graphs(速率时间图像).doc

LESSON PLAN Course: PHYSICSGrade Level: Grade one/twoTeacher:林华平Date:Title: Distance against time graphsContent: Distance against time graphsPRE-LESSON PLANNINGLearning Objectives1. To introduce the definitions of gradient of distance against time graphs.2. To interpreting distance against time graphs.Design the Assessment:1. Several related questions are prepared to evaluate the students.2. To practice the distance against time graphs.Design Assessment Rubric (if Needed)TEACHING THE LESSONVocabulary:slope slp 倾斜；斜率 gradient grednt 梯度；坡度；倾斜度 stationary ste()n()r 固定的；静止的 ；静止 flat flt 平坦的；扁平的 curve kv 曲线；弯曲 ；弯曲的；曲线形的 ratio re 比率，比例 section sek()n 部分；节 sketch sket 草图；略图；素描plot plt 绘图 horizontal hrznt()l 水平线，水平面；水平的；横向 vertical vtk()l 垂直线，垂直的，垂直journey dn 行程 Materials: Procedure:1. PresentationShow the picture. -What is the meaning of this sign?-What does the 7% mean?2. VocabularyRead the key words together.3. Gradient Step1: Introduce the definition of gradient.Gradient is the ratio of the vertical rise to the horizontal run between any two points on a line. Step2: Determine the slope of the line. Start with the lower point and count how much you rise and run to get to the other point! Notice the slope is positive AND the line increases! Speed = Slope = Rise/Run4. Different distance against time graphs Step1:Discuss the distance against time graphs. The gradient of the graph tells us that the object is not moving. The gradient of the graph tells us that the object is moving at constant speed. The gradient of each graph tell us that the yellow object is moving faster than the blue object. The slopes of each tangent line on the graph tell us that the object is moving faster. Step4: Explain the examples. 5. Exercise Do some exercises to practice the distance against time graphs.-Show the picture and answer the questions.-Page 16: questions 86. Summary 7. Assignment Finish the worksheet.Check for Student Understanding by:Guided Practice Check for student understanding by: Closing Activity Summarizing the LearningSTUDENT WORKIndependent PracticePOST LESSON ACTIVITIES Student AssessmentProvide feedback to th