本研究旨在探討一適合培養國小學生批判思考能力之網路教育模式，以有效促進國小學生批判思考能力的發展，並提供教師作為創新教學的參考。 透過文獻探討，以Ennis的批判思考教學模式為主要參考，融合網路教學的特性，發展出培養國小學生批判思考能力之網路教學模式。並以PHP-Nuke軟體建置教學平臺，經由五週的實驗教學活動，以驗證此一培養國小學生批判思考能力之網路教學模式對國小學生批判思考能力、問題解決能力的影響。 本研究主要發現如下： 一、 依據培養國小學生批判思考能力之網路教學模式所設計的教學活動，能提昇國小學生的批判思考能力及問題解決能力。 二、 依發展培養國小學生批判思考能力之網路教學模式所設計之教學活動，對於國小學生批判思考能力的「解釋」技巧，有顯著提昇。 三、 依發展培養國小學生批判思考能力之網路教學模式所設計之教學活動，不能助長國小學生的批判思考意向。 四、 依發展培養國小學生批判思考能力之網路教學模式所設計之教學活動，對於國小學生問題解決能力的「問題察覺」、「原因推測」等技巧，有顯著的提昇。

　　　　　The purposes of this study were to develop a web-based instructional model for teaching primary school student's critical thinking skills, and to promote the critical thinking skills for primary school students. This model can provide a reference for teachers in teaching critical thinking activities with web-based instruction. By the reference of the connotation, the gateway that developed instructional model refered from Ennis' critical thinking istrucational model, and integrated with the characteristic of web-based instruction. It is intended to design a web-based instructional activity to examine the effect of the web-based instructional model for teaching primary school students' critical thinking skills. The results from the data analysis are as follows: 1. The Web-based instructional model for teaching primary school students' critical thinking skills can promote the critical thinking skills and problem-solving abilities of primary school students. 2. The Web-based instructional model for teaching primary school students' critical thinking skills can promote the interpretations' skill of critical thinking of primary school students. 3. The Web-based instructional model for teaching primary school students' critical thinking skills can not promote the critical thinking incluinations of primary school students. 4. The Web-based instructional model for teaching primary school students' critical thinking skills can promote the consciousness and conjecture of problem-solving of primary school students.