A. H. Abdullah

Publications125
h-index10
Citations397
Highly Influential Citations22
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Enhancing Students' Level of Geometric Thinking through Van Hiele's Phase-based Learning
The purpose of this study was to test the effectiveness of Van Hiele's phase-based learning on students' levels of geometric thinking. Quasi-experimental design was used in this study. The six-week… Expand
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The effects of van hiele's phase-based instruction using the geometer's sketchpad (GSP) on students' levels of geometric thinking
The purpose of this study was to test the effectiveness of Van Hiele's phases of learning geometry using the Geometer's Sketchpad (GSP) on students' levels of geometric thinking. This… Expand
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Analysis of Students’ Errors in Solving Higher Order Thinking Skills (HOTS) Problems for the Topic of Fraction
TLDR
Problem-solving is an activity that can generate Higher Order Thinking Skills (HOTS) among students. Expand
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Metacognitive skills of Malaysian students in non-routine mathematical problem solving
Metacognitive skills play an important role in solving mathematical problems. However, there is a lack of empirical studies on the role of metacognitive skills in solving mathematical problems,… Expand
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Mathematics Teachers’ Level of Knowledge and Practice on the Implementation of Higher-Order Thinking Skills (HOTS)
TLDR
This study aims to identify the level of knowledge and practice on the implementation of higher-order thinking skills (HOTS) among mathematics teachers at a secondary school in the district of Terengganu. Expand
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A case study on visual spatial skills and level of geometric thinking in learning 3D geometry among high achievers
Since geometry mainly comprises of three-dimensional (3 D), visual spatial skills and level of geometric thinking are essential in the teaching and learning of Geometry. In addition, it is also… Expand
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Effect of STEM competition on STEM career interest
TLDR
The Young Innovators Challenge Programme is a programme in Malaysia to increase students’ generic and soft skills, problem solving, creativity and innovation through workshops, boot camp and competitions. Expand
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Enhancing students' geometrical thinking levels through Van Hiele's phase-based Geometer's Sketchpad-aided learning
TLDR
The content order of geometric components in the mathematics curriculum and the teaching process in a geometry class are said to be in contrast with the existing level of geometric thinking among secondary school students in Malaysia. Expand
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The Effects of Van Hiele's Phases of Learning Geometry on Students’ Degree of Acquisition of Van Hiele Levels
Abstract Geometry is a basic skill to be mastered. It is important in architecture and design, in engineering and in various aspects of construction work. However, in Malaysian education system, the… Expand
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A learning 3d geometry through sketchup make (sppd-sum) to enhance visual spatial skills and the level of geometric thinking
TLDR
This study aims to develop a 3D Geometry learning strategy through SketchUp Make (SPPD-SUM) and examine the effects of SPPD- SUM on students' visual spatial skills (VSS) and level of Geometry thinking (LGT). Expand
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