“计量时间”单元解读与教学建议

Interpretation of "Measuring Time" Unit and Teaching Suggestions

核心概念的进阶式学习,有利于促进学生高阶思维与科学素养的发展。"计量时间"单元教学内容通过统整设计,使每课的知识学习目标呈螺旋上升的进阶关系,并最终指向单元的核心概念。该单元的学习内容以技术与工程实践为主,让学生了解并经历史上几个比较典型计时工具的设计制作,体验工程技术的实践过程。因此,本单元的教学要突出技术与工程实践,指向科学概念、发展科学思维。

The advanced learning of core concepts is conducive to promoting the development of students’high-level thinking and scientific literacy.Through the integrated design of the teaching content of the unit measuring time,the knowledge learning objectives of each lesson show an advanced relationship of spiral rise,and finally point to the core concept of the unit.The learning content of this unit focuses on technology and engineering practice,so that students can understand and experience the practical process of engineering technology through the design and production of several typical timing tools in history.Therefore,the teaching of this unit should highlight technology and engineering practice,point to scientific concepts and develop scientific thinking.