Peter Akinsola Okebukola

As science educators seek innovative methods to engage students, the Culturo-Techno-Contextual Approach (CTCA) has emerged as a promising strategy, particularly for African students. CTCA is a culturally responsive teaching method that integrates culture, technology, and locational context, making science more relatable and meaningful. We assessed CTCA’s effectiveness in enhancing critical thinking in biology among 121 senior secondary students in Lagos State. An explanatory sequential design was used, with the experimental group taught using CTCA and the control group receiving traditional instruction. Data were collected using the Critical Thinking Test in Nutrition (a = 0.80) and interviews. Results showed a significant improvement in critical thinking for the CTCA group (F(1, 198) = 11.43; p < 0.05), with no significant gender differences (F(1,49) = .49; p > .05). Students responded positively to intervention, leading to the conclusion that CTCA effectively enhances critical thinking in biology; hence, adoption of CTCA in biology instruction is recommended.

Abstract The results of recent studies into the use of the concept mapping heuristic seem to demonstrate that meaningful learning results through its use in science classrooms. While this underscores the need to use more effective instructional strategies in science teaching, the issue of the intervening variable of anxiety in learning and science achievement, and the possible use of a metacognitive strategy in anxiety reduction have not been addressed. This study, therefore, sought to find out if the metacognitive strategy of concept mapping reduces anxiety and thereby enhances achievement in biology. A total of 51 (30 boys, 21 girls) senior secondary one (grade 10) students participated in this experiment. Two instruments—the Zuckerman Affect Adjective Checklist and the Biology Achievement Test—were used in pre‐ and posttest administrations to measure the treatment effect on anxiety and achievement, respectively. Findings support the stand that concept mapping is significantly more effective than the traditional/expository teaching strategy in enhancing learning in biology. In addition, it apparently reduces students' anxiety towards the learning of biology. A significant reduction of anxiety was noticed for male subjects.

The development of scientific process skills is central to laboratory work in biology. A search for the laboratory interaction pattern that is most potent in the development of these skills is described. 720 secondary class three biology students were involved in a pre-test, treatment, post-test experiment in which competitive interaction was found to be superior to cooperative and individualistic interaction patterns in promoting the development of process/laboratory skills.