排序方式： 共有69条查询结果，搜索用时 31 毫秒
31.
测边交会法可用于建筑施工变形监测中,传统的方法是钢尺丈量边长交会法,随着电子技术的发展,电子测距仪的应用,特别是全站仪的逐步推广与应用,测边交会法用于建筑施工变形监测又有广泛应用的趋势。但交会点的坐标及误差计算比较复杂,经作者进行测边交会的误差分析的计算结果公式,应用可编程序型计算器fx-4500P及开发的程序,可快速、准确计算测边交会点的坐标和点位精度。 相似文献
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根据工程勘测、施工的一点体会,对匝道曲线算法进行了分析,提出一种基于CAD10FX—4500P可编程型计算器的方法,并给出部分算例,以其作为当前实际应用的一种补充. 相似文献
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Ferdinand D. Rivera 《Educational Studies in Mathematics》2007,65(3):281-307
This paper provides an instrumental account of precalculus students’ graphical process for solving polynomial inequalities.
It is carried out in terms of the students’ instrumental schemes as mediated by handheld graphing calculators and in cooperation
with their classmates in a classroom setting. The ethnographic narrative relays an instrumental sociogenetic account of mathematical
knowledge construction and foregrounds a progressive evolution of mathematical knowledge from the concrete to the abstract
phase. 相似文献
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介绍了图形计算器和CBL系统在物理实验中的应用及图形计算器的编程方法与技巧。 相似文献
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CASIO fx-5800P编程计算器新增的统计串列、复数及类BASIC功能,给工程计算编程带来了极大的便利。使用fx-5800P计算器编制了公路与铁路路线任意变坡点连续竖曲线高程计算程序,经过实例验证,计算准确、实用性强,可以较大程度提高外业计算的效率。 相似文献
36.
《学校用计算机》2013,30(3-4):135-145
Summary This article describes how a teacher changed her method of teaching after acquiring knowledge about graphing calculators in a Professional development program. It describes one particular unit on understanding variables and graph interpretation taught in a seventh-grade science and math class. The use of graphing calculators proved to be effective in increasing student understanding of relationships between variables, graphing, and experimental design. The teacher in our project also found graphing calculators to be effective tools for teaching constructively. Our study implies that math and science teaching can be improved through the use of graphing calculators. 相似文献
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In the context of an afterschool program in which students explore relatively large authentic datasets, we investigated how 11- to 14-year old students worked with categorical variables. During the program, students learned to use the Common Online Data Analysis Platform (CODAP), a statistical analysis platform specifically designed for middle and high school students, to create and interpret graphs. Following the program, we conducted individual clinical interviews, during which students used CODAP to answer questions about relationships between variables. Here, we describe how students engaged in exploratory data analysis that involved looking at relationships between two categorical variables. Students worked from data in table form and created “contingency graphs,” a variant of contingency tables, which they used to analyze and draw insights from the data. Our research identified four strategies that students used to examine the data in order to explore patterns, make comparisons, and answer questions with the data. 相似文献
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分析了CAD应用技术与工程图学教学体系融合的三种模式。结合CAD应用技术与工程图学教学模式的融合实践,总结了教学实践的具体内容和存在的教与学问题,提出基本观点和解决的方法。 相似文献
40.
在显示器教学中 ,开关电源是教学的难点和重点 ,本文以UC384 2为核心的开关电源为例 ,对如何进一步提高显示器开关电源的教学效果和效率作了初步的探讨。 相似文献