Interdisciplinary Journal of Education Research

Exploring the impact of GeoGebra on preservice teachers’ proficiency in teaching grade 10 parabola functions

2025-03-29T07:14:51+02:00

This paper investigates the development of teaching proficiency among preservice teachers in Grade 10 parabola functions through the use of GeoGebra. A significant number of preservice teachers encounter challenges in effectively teaching parabola functions due to limited resources for illustrating complex mathematical relationships, which can impede both their teaching proficiency and the students' conceptual understanding. The study was conducted at a rural-based university and involved four third-year Bachelor of Education (FET & SP) preservice teachers (PSTs) who were purposively selected. These preservice teachers specialised in mathematics and instructed Grade 10 parabola functions during both microteaching sessions and their teaching practice in rural schools. Prior to their teaching experiences, the preservice teachers received training on the integration of GeoGebra into their lesson plans. Employing an interpretivist paradigm and a case study research design, the study utilised the Technological Pedagogical Content Knowledge (TPACK) framework along with Kilpatrick et al.'s five strands of mathematical proficiency as analytical perspectives. Data were gathered through video-recorded lesson observations and stimulus recall interviews. The findings indicate that GeoGebra significantly enhanced the preservice teachers' proficiency by supporting critical areas of mathematical understanding: conceptual understanding, fluency, strategic competence, and adaptive reasoning. The dynamic visualisations offered by GeoGebra enabled preservice teachers to engage learners more deeply, facilitating a better understanding of parabola functions. PSTs reported improved confidence in their teaching, particularly in using real-time graph manipulation to explain complex concepts.

Mathematics teaching for sustainable development: Challenges and successes

2025-04-14T10:06:07+02:00

Mathematics teaching for sustainable development is fraught with challenges that hinder meaningful learning and the acquisition of problem-solving skills essential for environmental, economic, and societal responsibility. Therefore, mathematics teaching requires effective skills to apply heuristic strategies for sustainable human development, enabling a learning progression from the fourth to the fifth industrial revolution. Effective instructional practices must focus on including learners’ cultural and social realities through democratic dialogue. This research draws from algo-heuristics theory, which highlights a prescription-oriented approach as opposed to process-oriented teaching methods. This qualitative phenomenological study engaged six purposively sampled mathematics teachers, teaching grades 8 to 12, in a focus group interview and classroom observations. The engagement aimed to explore the successes and challenges faced in the mathematics classroom in relation to the attainment of the Mission 2030 sustainable education goals. Findings revealed that mathematics teachers lack sustainable teaching skills, and their practices lean towards prescription-oriented and algorithmic teaching methods, which contribute to impractical and dysfunctional learning environments. Consequently, mathematics teaching does not foster learning that equips students with the sustainable abilities needed to achieve the Mission 2030 sustainable education goals. To minimise these challenges and support teachers in applying process-oriented heuristic teaching methods, teacher empowerment is necessary. In essence, mathematics teachers should be guided in the application of process-oriented teaching strategies that enable them to implement meaningful learning for sustainable development.