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DOCUMENT RESUME ED 236 034 SE 043 315 AUTHOR Happs, John C. TITLE Rocks and Minerals. Science Education Research Unit. INSTITUTION Working Paper No. 204. PUB DATE Waikato Univ., Hamilton (New Zealand). NOTE May 82 31p.; For related documents, see ED 226 976, ED 229' 442, ED 230 594, ED 235 011-030, SE 043 285-302, and 0,AILABLE FROM SE. 043 305-314. University of Waikato, Science Education Research. PUB TYPE Unit, Hamilton, New Zealand. Reports Evaluative/Feasibility (142) -- Reports Research/Technical (143) EDRS PRICE MF01 Plus Postage. PC Not Available from EDRS. DESCRIPTORS Classification; *Concept Formation; Crystallography; *Curriculum Development; *Earth Science; Elementary School Science; Elementary Secondary Education; Interviews; Learning;Science Education; *Science IDENTIFIERS Instruction; *Secondary School'Science *Learning in Science Project; Minerals; .*New Zealand; Rocks; Science Education Research ABSTRACT The Learning in Science Project has adopted the view that science teaching might be improved if teachers can be given some appreciation of studentg' views of the,world and the beliefs, expectations, and language that learners bring to new learning situations. This investigation focuses .on the views that children ('1=34) may have abOut rocks and minerals. Information was obtained from interview protocols, word responseg, and sorting tasks to examine ways in which: (1) children and adolescents view and describe rock/mineral samples and how they relate these ideas to rock/mineral origins and composition; (2) learners tend to categorize rocks /minerals; and (3) learners respond to'key stimulus-words that are considered by earth scientists to be important in the study of rock/fniner \al samples. Results of the investigation indicate that the children focused on different attributes than those of earth scientists. In addition, their approach to developing categories for rock/minera1\samples was in stark contrast to the approach likely to be taken by earth scientists (such as using appearance, origin, weight, and composition -to categorize samples as either "rocks". or "not rocks"). (A discussion of earth scientists' views of rocks, minerals, crystals, and classification of the 15 samples used in the study is included.) (JN) *********************************************************************** Reproductions 'supplied by'EDRS are the best that can be made from the original document. *********************************************************************** u.ai. DEPARTMENT OFEDUCATION NATIONAL INSTITUTE OF.EOUCATION F 'UCATIONAL RESOURCES INFORMATION T CENER ER ( I This documunt has booIC/ rocuivini from.. the n ruproduced as originating it. poison of organitation I I Minor changes have bum Falai to innuovu .(D r Doi Woo lion qualify. _.... ____... _ ...... ..... Points of viuw or opinions statud In tnis __. merit (lo nut nucossatily (lac u Position or policy. roprusent official NIE SCIENCE EDUCATION RESEARCH ilext.: '' .-asamr-aar...7r..1,."7::,,o.T.e=rf.tsriArszat-rz.1.74^mo.-m-smrtovvurs7.7n7r.rrz.1.1cP.I. nvet -711:17.4M71113;V:::T.:.:='1. ROC AND-M1NERALS.. "PERMISSION TO REPRODUCE THIS M;TERIAL IN MICROFICHE ONLY -HA BEEN GRA iTED BY ti 6. A rideACIA! TO THE EDUCATIONAL RESOURCES Univers!ty of Waikato INFORMATION CENTER (ERIC)." 2 204. SOME ASPECTS OFSTUDENT UNDERSTANDING OF- ROCKS AND MINERALS A Working Paper of the Science Education Research Unit John. C. Happs May, 1982. INTRODUCTION Recent developments in cognitive 'psychology ( Wittrock, 1974; 1978; Greeno, 1980) and its application to teaching strategies (Champagne et al.., 1981; Osborne, and Wittrock, 1982) have led to the view that a learner's prior knowledge must interact with incoming -information to generate meaning. For learning to be effective and long lasting, this generated meaning must be linked, in a variety of ways, to information ,;;.n long-term memory (cognitive structure). This approach emphasises the importance of an understanding of the ideas that learners bring with them to the learning situation, both in terms of helping teachers to understand more about the process of learning and in terms of helping to develop more effective teaching strategies. In the past,' many teachers have generally not seen the necessity to understand how teaching needs to be related to the learner's background and 'his/her current level of understanding. Lovell (1980) has placed this within the context of the classroom teacher. He highlights the situation whereby a student is introduced to a new topic during a science lesson and (s)he already has some prior ideas and a conceptual framework which relates to that topic. This framework of ideas may have been established from past personal experience involving previous teaching situations, exposure to news media and everyday encounters with familiar words. Building upon existing conceptual ideas, or modifying available ideas within__cognitive frameworks, would seem. to be a more fruitful approach to teaching, rather than viewing the learner as a 'blank slate' needing a completely new cognitive framework (see Gilbert et al., 1982). The Learning in Science Project (Osborne et al., 1981) has taken a pragmatic research approach( emphasising the philosophy that science teaching, at all levels, might be improved if teachers can reach a ,better appreciation of the learners' views of the world. The Learning in Science Project has focussed on the broader ideas and alternative frameworks that' the learner is likely to take to the science learning situation. More specifiCally, the Learning in Science Project ,has probed those beliefs, ideas and viewpoints that learners employ during science lessons. This emphaais has not been evaluative, rather it has attempted to Obtain this .kind 'of information by means of small-scale, in -depth research that can relate kits ,findings to science teaching essentially at the Fc)rms\1-4 levels. 4
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