THE RELATIVE EFFECTIVENESS OF GUIDED DISCOVERY AND EXPOSITORY STRATEGIES ON STUDENTS’ PERFORMANCE IN SENIOR SECONDARY SCHOOL CHEMISTRY by DR. N. E. U. INYANG, FSTAN and MR. JOSEPH O AKPAN

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ABSTRACT
The effects of guided discovery and expository methods of teaching on achievement and retention by male and female Chemistry students of different ability levels were investigated in this study. 150 (85 male and 65 females) 1996/97 Senior Secondary II Chemistry students of intact classes from two institutions in Uyo Urban of Akwa Ibom State were used in the study. Students in one school (the control group) were taught using the expository method white those in the other school(the experimental group) were taught using the guided discovery method. Instructional packages designed for the two groups were based on the same performance objectives and lasted for a duration of four weeks. Before the treatment a Chemistry Achievement Test(CAT) based on the instructional package was administered as pre-test. On the last day of treatment, sessions and two weeks after CAT was re-administered to the subjects. The data obtained were used to assess the subjects achievement and retention, The analysis of variance and t-test analysis of the data showed that:
i) Students taught using the guided discovery method performed significantly better (F1, 138 = 59.61, P <.05) and had greater retention (F1, 138 = 105.71, P<.05) than those taught with expository method. ii) The male and female students in both groups showed no significant difference in their academic achievement and retention (F1, 138 = 2.69/F1, 138 = 3.18, P<.05) iii) The high ability level students performed significantly better than the average ability students who in turn were better than the low ability students no matter the instructional strategy used. Implications of these findings were noted for further studies.

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Authors
DR. N. E. U. INYANG, FSTAN
Dept of Science Education
University of Uyo
Uyo – Akwa Ibom State
&
MR. JOSEPH O AKPAN
AME-Zion Secondary School
Ndon Ebom Uruan I GA
Akwa Ibom

Citation
Inyang, N. E. U. and Akpan, J. O. (1999). “The Relative Effectiveness of Guided Discovery and Expository Strategies on Students’ Performance in Senior Secondary School Chemistry” Journal of Education and Society 2(1), March, pp. 8-17.

Prof. Nsedu Inyang

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Professor N.E.U. Inyang has always been a teacher. He started as an Assistant Science Master at Duke Town Secondary School, Calabar. From 1976 till date he has taught in various institutions. He was appointed Acting Head, Department of Science Education in Uniuyo from 1994-1998 and promoted Associate and full Professor of Science Education in 1999 and 2002 respectively. He has taught undergraduate courses in Science Education, supervised undergraduate projects and jointly supervised Masters and Ph.D dissertations and theses both in University of Uyo and during his sabbatical leave to Nnamdi Azikiwe University, Awka.

Prof. Nsedu Inyang served in various capacities in the Science Teachers‘ Association of Nigeria (STAN) at both State and National levels. It was during his tenure as Chairman of Akwa Ibom State branch of STAN, He that Akwa Ibom State Branch was adjudged the best branch of the year for an outstanding membership among other achievements. Prof. Inyang served the Akwa Ibom State Government as a resource person at various workshops for primary and secondary school science and mathematics teachers.

Prof. Nsedu Inyang has been engaged in a number of Editorial services. He jointly published Integrated Science Workshop proceedings on the Integrated Science Curriculum in the 3 3 system Secondary Education in 1981. He jointly edited a book of readings on science and society 1997. He is editorial adviser of the integrated Science Education series of Integrated Science Panel of STAN and an author of the Basic Science of the University Press Plc, Ibadan, Nigeria.

To date, Prof. Nsedu Inyang has 45 publications to his credit made up of 22 journal articles and 23 book chapters, many of which can be accessed on this knowledgebase. He attended and presented several the keynote addresses and lead papers at conferences, some of which includes Teacher’s Day in 2009 at the Akwa Ibom State rally of NUT and a motivational talk at the Mobil/NNPC/Akwa Ibom State Science quiz, facilitated by the Akwa Ibom State Branch of STAN etc.

Prof. Nsedu Inyang has played a number of leadership roles in his christian life. He is happily married and is blessed with successful children.
His personal knowledgebase and website can be accessed via www.nseduinyang.com.ng

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