美国学校的成绩计算方法，这是我们很多孩子在美国读书的家长所关心的，所以最好大家都研究一下。

　　一、期末成绩分数：

　　成绩公布栏

　　日期至: 4/27/10 4:07 P.M.Hide Grades

　　课程: 成绩一览:

　　Physical Sci A+ 102.72%

　　Language Arts2 A+ 102.76%

　　Physical Ed尚未公布

　　Hon Geometry 1ABA+ 103%

　　Skls for Teens 7-8尚未公布

　　Us Hist/Geog 8A94.91%

　　注：左边的红色字体应该是课程的名称，右边黑色字体是孩子在学校的成绩。

　　二、成绩是如何计算出来的，以8年级物理为例：

　　Physical Sci: Richard B.Period: 1

　　Grade: A+ Score: 102.72% Grade Last Published: 4/27/10 2:29 PM

　　首先是各类考试和作业在成绩中所占的比重和成绩，然后加权后得到孩子的期末成绩。

　　Physical Sci: Richard B. Period: 1

　　Grade: A+ Score: 102.72% Grade Last Published: 4/27/10 2:29 PM

　　首先是各类考试和作业在成绩中所占的比重和成绩，然后加权后得到孩子的期末成绩。

　　Category: Weight: Score:

　　Quiz 小考 15% 120%

　　Test 考试 30%99.1%

　　Homework 作业 10%100.93%

　　Participation 课堂参与 5% 95.56%

　　Lab/Activity 实验20% 95.92%

　　Daily Work 课上作业 5% 100%

　　Classwork 合作作业 10% 114.91%

　　Projects 课件 5% 89%

　　注：左边是各项考试、作业的类型，如小测验、大考、作业等，中间是各类考试或作业在期末总评中所占的比重，右边是孩子各类考试和作业的得分，这样最终得出孩子的期末成绩。如：

　　孩子的成绩=120*15%+99.1*30%+100.93*10%+95.56*5%+95.92*20%+100*5%+114.91*10%+89*5%=102.726

　　孩子的最终成绩是102.726，对照学校的评分标准，得到的成绩是A+

　　三、各类考试和作业成绩的明细：

　　类型 截止日期 作业名称 分数 得分/总分 百分比

　　Classwork 2/10/10Breathless in Leadville 9 9 / 12.0 = 75%

　　Daily Work 2/10/10 P. 422, #1a-b, 3a-b 88 / 8.0 = 100%

　　Classwork2/11/10 Bill Nye Video "Pressure" 1515 / 15.0 = 100%

　　Homework2/11/10They Love Pressure 99 / 9.0 = 100%

　　Participation2/12/10Participation Points 2-8 to 2-12 1212 / 15.0 = 80%

　　Homework2/22/10Density problems 1818 / 18.0 = 100%

　　Quiz 2/23/10 Density Quiz 12 12 / 10.0 = 120%

　　Participation2/26/10 Participation 2-22 to 2-26 1515 / 15.0 = 100%

　　Participation3/5/10Participation 3-1 to 3-5 1515 / 15.0 = 100%

　　Classwork3/5/10Workbook 11.1 1010 / 10.0 = 100%

　　Classwork3/5/10Workbook 11.2 1010 / 10.0 = 100%

　　Participation3/12/10Participation 3-8 to 3-12 1515 / 15.0 = 100%

　　Projects3/12/10Balloon Project 8989 / 100.0 = 89%

　　Lab/Activity3/12/10Baffling Bernouli&apos&aposs 2020 / 20.0 = 100%

　　Test3/16/10Test Chapter 11 4949 / 50.0 = 98%

　　Homework3/16/10Study Guide Chapter 11 1515 / 15.0 = 100%

　　Participation3/19/10Participation 3-15 to 3-19 1515 / 15.0 = 100%

　　Classwork3/19/10Motion Problems WS 2424 / 24.0 = 100%

　　Classwork3/22/10Speed Challenge 2424 / 25.0 = 96%

　　Lab/Activity3/23/10Interpreting Motion Graph 1818 / 18.0 = 100%

　　Classwork3/23/10Draw a Graph 1212 / 14.0 = 85.71%

　　Lab/Activity3/25/10Slow Bicycle Race Lab 2020 / 20.0 = 100%

　　Participation3/26/10Participation 3-22 to 3-26 1515 / 15.0 = 100%

　　Classwork3/29/10Interpreting Motion Worksheet 2020 / 20.0 = 100%

　　Homework3/29/10Comparing D/T to S/T graphs Worksheet 2424 / 24.0 = 100%

　　Homework3/30/10P 355 # 1a,b,c 2a,b 3a,b,c 4 & 5 2323 / 22.0 = 104.55%

　　Lab/Activity4/1/10Open House Extra Credit-

　　Participation4/2/10Participation 3-29 to 4-2 1212 / 15.0 = 80%

　　Classwork4/2/10WorkBook Ch 9.1 1010 / 10.0 = 100%

　　Classwork4/2/10WorkBook Ch 9.2 1010 / 10.0 = 100%

　　Lab/Activity4/12/10Snail Race Lab Report 3636 / 40.0 = 90%

　　Homework4/13/10Study Guide Download 1010 / 10.0 = 100%

　　Classwork4/13/10Speed Machines 1111 / 11.0 = 100%

　　Daily Work4/15/10CSI: Bullets a&apos&aposFlyin&apos&apos 2020 / 20.0 = 100%

　　Homework4/15/10Ch. 9 Study Guide Completed 1010 / 10.0 = 100%

　　Test4/16/10Chapter 9 Test - Motion 6161 / 61.0 = 100%

　　Participation4/16/10Participation 4/12 to 4/16 1515 / 15.0 = 100%

　　Participation4/23/10Participation Points 4-19 thru 4-23 1515 / 15.0 = 100%

　　Classwork4/23/10Hall Pass Extra Credit 30-

　　根据这份记录，老师得出作业的分数，小测验的分数、考试分数、课堂参与的分数等。

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