The City School SYMMETRY -Worksheet #1

Bridges 2010 Conference Proceedings: Bridges 2010, Pécs, Hungria, 2010

Children of different classes of elementary schools in Portugal have participated in a mathematics project which aims at increasing the interest for Mathematics in Portugal together with developing skills for day-today problem solving and interrelating Mathematics with other Sciences and Arts. In this talk we shall present some of the results obtained while exploring several topics related to symmetry. The examples given relate to tiling, kaleidoscopes, animal drawings and cooking.

This paper describes Singapore and Australian Grade 6 students' (n=1187) performance on a symmetry task in a recently developed Mathematics Processing Instrument (MPI). The MPI comprised tasks sourced from Australia and Singapore's national assessments, NAPLAN and PSLE. Only half of the cohort solved the item successfully. It is possible that persistence of prototypical images of a vertical line of symmetry and reinforcements in the classroom could have contributed to this low success rate.

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Mathematics Education Research Journal, 2000

International Journal of Mathematical Education in Science and Technology, 2000

Academia Quantum, 2024

Editorial from the new Chief Editor.

Prophetic dreams, Xerxes, and Persia’s invasion of Greece , 2023

(2023) MJ Olbrycht, Prorocze sny, Kserkses i atak Persji na Grecję / Prophetic dreams, Xerxes, and Persia’s invasion of Greece Przegląd Religioznawczy/ The Religious Studies Review 3(289)/2023, 67-73. In the traditions of Ancient Western Asia, including Assyria and Babylonia (and perhaps Elam as well), dreams were treated as important points of reference for political decisions, and this was given expression in royal documents. Things were no different in the Persian Achaemenid Empire. Persian kings sought explanations from the priests called Magi about their dreams and extraordinary phenomena. Prophetic dreams concerning rulers appear repeatedly in Herodotus' Histories. This pertains to the dreams of the Median king Astyages (Hdt. 1.107.1; 1.108.1); Cyrus the Great (Hdt. 1.209−210), and Kambyses (Hdt. 3.30; cf. 3.64.1; 3.65.2). Xerxes' third dream (7.19), the last of a series of three dreams that prompted the Great King to attack Greece, belongs to this group. In the account of Xerxes' preparations to invade Greece, persuasions to undertake the expedition from many quarters are depicted, but dreams play a key role (Hdt. 7.12−19). The speeches in the Persian council have all assumed that the invasion is a matter of choice for Xerxes. But the final decision to attack Greece comes from the dreams which are interpreted by the Magi. The visions mean that if Xerxes does not make his Greek campaign, he will be changing the nomoi of Persia, and thereby endangering his rule and empire. Abandoning the Greek campaign meant abandoning the nomoi of Persia. Herodotus takes advantage of the existence of the Magi to build his narrative, and places in the king's dreams the threads and motifs (olive wreath) that put together the particulars of his story. The role of the Magi as interpreters of royal dreams can be considered a tenable element in the historical narrative of Herodotus. The Magi are found in Greek sources as priests, experts in rituals, seers and dream interpreters.

1 Licenciado en Educación con especialidad en Química por la Universidad de Ciencias Pedagógicas Enrique J. Varona de La Habana. Magíster en Ciencias de la Educación Superior por la Universidad de La Habana. Doctor en Ciencias Pedagógicas por la

RCC and steel frames have been the most common frame systems for long times whereas composite frame system has also emerged as popular system for high rise buildings for few decades. Multi-storey composite frames are generally composed of structural steel members made composite with concrete. The use of concrete filled steel tubes (CFST) in building construction has seen renaissance in recent years due to their numerous advantages, apart from its superior structural performance making a typical composite frame structure. Their usage as columns in high-rise and multi-story buildings, as beams in low-rise industrial buildings and as arch bridges, has become extensive in many countries in last four decades with abundant examples. But, their usage in India is a new concept. Hence, this paper shall primarily emphasis to investigate the various aspects of CSFT members in the building industry; primarily considering the various aspects of these members which have turned its unique phase with the advancement of technology.

Mediterranean Marine Science, 2024

A single individual of Ariidae was captured in 2022 in the Palestinian waters off the Gaza Strip, eastern Mediterranean. A comprehensive description of the morphological and meristic characters of the specimen was conducted. Molecular identification was performed through sequence analysis of the Cytochrome Oxidase subunit I (COI). The specimen was identified as Ariopsis felis, both morphologically and genetically. The natural range of this species is the western Atlantic and, to the best of our knowledge, the species has never been reported before from Mediterranean waters. The singular occurrence of this fish in the basin prompts further discussion, raising questions about the possible vectors that may be responsible for this new introduction in the Mediterranean Sea.