The Study of Geometry in Elementary Mathematics Textbooks in Finland, Singapore, and Taiwan

This study examined the differences in the presentation of geometry concepts and characteristics of geometry questions among elementary mathematics textbooks in Finland, Singapore, and Taiwan. Horizontal and vertical analysis methods were used to collect and analyze the data. A popular Mathematics textbook from a dominant publisher in each country were selected: Laskutaito from Finland, My Pals are Here! Maths from Singapore, and Kang Hsuan from Taiwan. The results indicated differences in the presentation of geometry concepts among the three textbook series. In addition, the questions in these textbooks were determined to demonstrate different characteristics. Moreover, these findings highlight the importance of cross-national textbook comparison to enhance the understanding of differences in learning opportunities across different countries.

Identification of Worm Eggs in Faeces of Egrets (Egretta sp.) in Surabaya

The aim of this research was to identify worm eggs species that infected Egrets in Surabaya. A total of 40 samples were taken and faecal examination was conducted in the Laboratory by means of native, sedimentation, and floating methods, In floating method saturated brown sugar solution was used as floating media because brown sugar solution was faster in floating worm eggs. Then further examination of the worm eggs species were matched by microscopic taxonomy and textbook comparison observation. Eggs of three classes of helmints, Trematode, Cestode, and Nematode were found in faeces of Egrets in Surabaya. Species of the Nematode eggs found were Ascaris sp., Ascaridia galli, , Capillaria sp., Toxocara cati. Species of Cestode class egg found were Raillietina sp, from Trematode class were Echinostoma revolutum.