线上线下混合+项目驱动的数字图像处理教学改革与实践

Teaching Application of Using Proportional Number Sequencing to Convert RecurrentDecimals into Fractions

数字图像处理课程是面向电子信息类专业开设的一门专业选修课。在“新工科”建设背景下,传统的数字图像处理课程教学方法还存在着诸多问题:课程缺乏任务导向,学生学习目标不明确;线上资源孤立存在,难以有效适配线下课堂教学;教师侧重对知识点的覆盖,忽视知识点的重构;学生项目训练不足,无法快速衔接产业需求。通过采用项目驱动模式与线上线下混合教学模式相融合的方式,可以有效地解决以上问题,提升学生的工程应用综合能力。

Pure recurring decimals and mixed recurring decimals are commonly discussed in elementary number theory,but how to convert these two types of decimals into fractions is not explained.This article uses a high school proportional sequence to convert pure recurring decimals and mixed recurring decimals into fractions,and provides a calculation formula for converting pure recurring decimals and mixed recurring decimals into fractions.This provides a favorable calculation formula for converting recurring decimals into fractions in the teaching of mathematics teachers in primary and secondary schools.