基于乡土资源的小学科学趣味实验教学设计——以制作樱桃色素酸碱指示剂为例

Instructional Design for Engaging Primary School Science Experiments Based on Local Resources—A Case Study of Creating a Cherry Pigment Acid-Base Indicator

摘要: “以制作樱桃色素酸碱指示剂”实验为例进行基于地方特色的科学趣味实验。自制酸碱指示剂是常见的小学科学趣味实验，实验步骤简单。樱桃是甘孜地区盛产的一种水果，富含丰富的天然色素，可用来进行自制酸碱指示剂的实验，实验现象明显。将少数民族地区当地特色与科学小实验结合，既能够学到有趣的科学知识，又有利于宣传当地的特色。本设计在“乡土课程资源开发”与“基于探究的科学教育(IBSE)”理念指导下，系统地将地方物产转化为情境化、探究式的科学学习活动，旨在为核心素养导向的小学科学教学提供一种可迁移的“乡土资源 + 科学探究”实践模式。

Abstract: This study takes the experiment of “creating a cherry pigment acid-base indicator” as an example to illustrate a fun science experiment based on local characteristics. Homemade acid-base indicators are a common, fun experiment in elementary school science, with simple experimental procedures. Cherries are fruit abundantly produced in the Ganzi region, rich in natural pigments that can be used to create homemade acid-base indicators, yielding clear experimental results. Integrating local characteristics of ethnic minority regions with small science experiments not only enables students to learn interesting scientific knowledge but also helps promote local distinctive features. Guided by the concepts of “local curriculum resource development” and “Inquiry-Based Science Education (IBSE)”, this design systematically transforms local products into contextualized, inquiry-based science learning activities, aiming to provide a transferable practical model of “local resources + scientific inquiry” for competency-oriented elementary science teaching.