• Journal of the Korean Society of Earth Science Education
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• v.10 no.3
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• pp.254-261
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• 2017

This study is to investigate preconception of elementary school students and Belizean elementary school teachers and to devise experiment to understand a cause of seasonal change. An open-ended questionnaire and interviews were conducted for 91 6th grade students who didn't learn seasonal change and 10 Belizean teachers to find out preconception of seasonal change and they were categorized by using inductive analysis. They thought that the Earth's rotation, the distance between the Sun and the Earth, the Earth's revolution, pollution and climate change cause seasonal change. And it found out that these misconceptions come from difficulty in awareness of space and impreciseness of textbooks and books and so on. The experiment was designed to correct inaccurate preconception and to improve lessons of seasonal change. It is to measure a meridian altitude and a length of daytime and nighttime and to compare them. This experiment can help to understand the cause of seasonal change by measuring natural phenomenons like the meridian altitude and the change of length of daytime by model.

• Iberoamérica
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• v.13 no.1
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• pp.255-286
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• 2011

Las fronteras de México. Guatemala y Belize se formaron cuando se indepedizaron desde España. Generalmente se adaptaron la división establecida durante la época colonial. Sin embargo, se han sucedido varios incidentes para alterarla. Uno de los incidentes más importantes fue 'la Guerra de Castas de Yucatán'. Los mayas aprovecharon esa oportunidad para expresar sus resentimientos que se formaron bajo el sistema colonial. Las rebeliones mayas ocuparon la parte oriente de la península y se formaron un país independiente que se duró más de 50 años. Para apacificar esta gran rebelión de los mayas indígenas, el gobierno mexicano dejó de perder el territorio de Belize que mantenía su soberania durante pasados tres siglos. Finalmente se formaron la frontera con Belize.