Документ взят из кэша поисковой машины. Адрес оригинального документа : http://hea-www.harvard.edu/~pgreen/Papers/PIA_AAStalk98.pdf Дата изменения: Fri Sep 23 18:23:48 2005 Дата индексирования: Tue Oct 2 01:57:10 2012 Кодировка: Поисковые слова: m 5

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ConcepTests for Introductory Astronomy
Smithsonian Astrophysical Observatory at the Harvard-Smithsonian Center for Astrophysics
Paul J. Green


large 100 students Earth to Cosmos in one semester phenomenological not conceptual well-practiced lectures, heavy on AV, graphics multiple choice exams emphasizing recall competitive grading discourages student interaction

TYPICAL ASTRO 101:

GETTING STUDENTS UNINVOLVED!
numbing blizzard of critical thinking not science by authority social collaborative no personal stake rules and facts engaged not adventure nature of science lost


An Example of Peer Instruction http: hea-www.harvard.edu ~ pgreen educ PI.html gauge student background and prior knowledge. Prepare them for conceptual class mode. Reading quizzes: encourages reading before class, and dispenses with the factoids.
First class:

CLASS IMPLEMENTATION


CLASS IMPLEMENTATION
An Example of Peer Instruction Lecture brie y in standard format on one of the fundamental concepts to be covered. Present a ConcepTest: a short multiplechoice question tests students' understanding. After 1 minute, the students record an answer and are asked to turn to their neighbors to try and convince them of their answers. 3 minutes for discussion and reconsideration, then each records a new? answer. A quick tally decides whether to stay on this concept, or move on.


BENEFITS OF CONCEPTESTS
Emphasize conceptual over rote learning. Emphasize student involvement in the learning - and scienti c - process. Engage student ego and attention. Provide student self-gauging. Provide real-time student instructor feedback. Anticipated misconceptions challenged, unanticipated misconceptions unearthed. Extensive documented success in Intro Physics!


ASTRONOMY CONCEPTEST DATABASE
Source 1: Instructor Collaborators Access Limitation - increases the database - prevents student access - increases instructor participation - facilitates evaluation, attribution, and modi cation Currently: 20 questions makes you a collaborator about 300 questions now on-line, organized by topic http: hea-www.harvard.edu ~ pgreen educ ConcepTests.html


Source 2: Quiz Genie - Instructor clicks on topics of interest from a searchable menu 20 topics, 250 subtopics - Genie generates and displays multiple choice questions, answers highlighted. - Questions recommended for ConcepTests are highlighted. - Instructor selects desired questions. - Genie returns an exam with headings. Currently: 5,000 questions each cross-indexed by subtopic 246 total Seeking Java programmer http: hea-www.harvard.edu ~ pgreen educ ConcepTests.html

ASTRONOMY CONCEPTEST DATABASE


FORMAT of QuestionBank al Ohio State a
question ID | | Number of answers | | | | CAV 5 If the force of the sun's gravity were suddenly turned off *the earth would continue to move, but in a straight line 1the earth would move directly away from the sun 2the earth would stop moving 3earth would spiral around sun at increasing distances 4None of the other answers is correct NEWTN GRAV ACCEL | | List of relevant subtopic codes asked of 1009 students | | 74.5 | right | | 22.8 | | wrong | ||

1009 763 87 24 67 65

745 228CAV 756 CAV 86 CAV 23 CAV 66 CAV 65 CAV


A HANDFUL OF REFERENCES for Peer Instruction and ConcepTests
Paul Green's Peer Instruction for Astronomy HomePage: http: hea-www.harvard.edu pgreen educ PI.html and Astronomy ConcepTest Database http: hea-www.harvard.edu pgreen educ ConcepTests.html Eric Mazur's Physics Peer Instruction HomePage: http: mazur-www.harvard.edu Education EducationMenu.html and its implementation http: physics11.harvard.edu center.html Implementation at Eastern Michigan University: http: www.emich.edu public fcie usingpeerinstruction.html ConcepTests for Chemistry and Implementation at Wisconsin: http: www.chem.wisc.edu concept PUBLICATIONS: Zeilik, M. et al. 1997, Conceptual Astronomy: A novel model for teaching postsecondary science courses", Am. J. Phys., 65, 987 P. M. Sadler 1992, The initial knowledge state of high school astronomy students", Dissertation, Graduate School of Education, Harvard University Hake, R. 1998, Interactive-engagement vs traditional methods: A six-thousand-student survey of mechanics test data for introductory physics courses," Am. J. Phys., 66, 64. See also http: carini.physics.indiana.edu SDI