Summary: | Kelarai, a design for weaving, which is made up of various motifs can be produced by a variety of natural products. The main focus of the study is on Kelarai Bertam which is selected based on the firm and robust quality of the wood which was often used as the building materials of traditional houses. The objective of the study is to investigate the geometrical design in the weaving art of kelarai bertam, the stimulation of mathematical thoughts in geometrical designs and the evolution of geometrical designs in the weaving art of kelarai bertam. The research method utilized in the study was the triangulation method consisting of observation, interview and analysis. The findings revealed that quadrilateral forms and symmetrical forms such as reflection, translation, rotation and magnification were present in the weaving of kelarai bertam. The design of kelarai has undergone the process of evolution beginning from the Siku Keluang motif and has now expanded to 20 exquisite motifs. The evolution of the design and motifs resulted from the observation made upon the natives' house and wall decorations from Indonesia. In fact, geometrical concept has long been applied in the weaving art but this was not realized by the individual weaver. It is suggested that extensive research can be conducted on the combination of different weaving materials such as wild bertam and bamboo which will produce different geometrical designs such as polygon. © 2013 AIP Publishing LLC.
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