PRE-SERVICE BIOLOGY TEACHERS’ PERCEPTION OF GLOBAL WARMING, GREENHOUSE EFFECT AND OZONE LAYER DEPLETION IN LAGOS STATE UNIVERSITY
The study examined the crux about global warming, greenhouse effect and ozone layer depletion
among pre-service biology teachers. A survey questionnaire adapted from Kalipit, Yener & Ozkadif
(2009); Rye, Ruba & Wiesenmayer (1997) and Boyes, Chambers & Stanisstreet (1995) was
administered to 65 pre-service Biology teachers purposively selected from the Department of Science
and Technology Education, Lagos State University, Lagos. This was to determine the pre-service
biology teachers’ perceptions about global warming, greenhouse effect and ozone layer depletion. Data
collected were analyzed using descriptive statistics. Results showed that pre-service Biology teachers
had misconceptions that the results of thinning of ozone layer will increase greenhouse effect and the
function of ozone layer is to protect the earth against excessive heat. Furthermore, majority of the preservice
biology teachers had misconceptions on global warming, ozone layer depletion and greenhouse
effect. It is imperative, therefore to proffer solutions to these misconceptions held by the pre-service
teachers by ensuring that instructors and instructional materials emphasize the importance of these
concepts to life ensuring that students have adequate knowledge about the concepts as well as ways of
tackling these challenges.
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