Value-loaded critical thinking refers to a combination of critical thinking, moral value development and reflection. It is important to teach value-loaded critical thinking in secondary education and philosophy seems the pre-eminent subject to do so. This article describes the theoretical foundations of value-loaded critical thinking, its educational objectives, and what is known about effective teaching strategies. Value-loaded critical thinking is best taught in teacher-led philosophical dialogues. Four design principles summarize effective teaching strategies for teaching value-loaded critical thinking in dialogue: teachers should (1) explicitly address moral values in dialogue; (2) apply moral values to engaging or realistic examples; (3) promote critical reasoning about moral values; and (4) provide opportunities for reflection.It is important that secondary school students learn to reason critically about normative issues. Philosophy teachers can contribute to this educational objective by promoting value-loaded critical thinking during philosophical dialogues. Value-loaded critical thinking is critical and reflective reasoning focused on deciding what is the right thing to believe or to do (Frijters et al. 2008). This paper describes the theoretical foundations of value-loaded critical thinking and presents four design principles for promoting value-loaded critical thinking during philosophical dialogues. The four design principles are: teachers should explicitly address moral values in dialogue (1), apply moral values to engaging or realistic examples (2), promote critical reasoning about moral values (3), and provide opportunities for reflection (4). To provide authentic illustrations and practical suggestions for teachers, each design principle includes selected excerpts of classroom dialogues of 10th grade philosophy classes in Dutch.
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In secondary school philosophy classes students learn to reason critically about social and scientific issues. This study examined the effects of a whole-class, teacher-led philosophy classroom dialogue intervention on students’ value-loaded critical thinking. Value-loaded critical thinking is logically consistent, self-reflective reasoning focused on making moral value-judgments about what is right to believe or do. In a quasi-experimental study (N = 437 students) with a pre-test post-test design, we investigated whether engaging in classroom dialogues in which the teachers implemented five design principles for promoting value-loaded critical thinking and transfer thereof, positively affected students’ (n = 150) value-loaded critical thinking in transfer tasks. The results were compared to two comparison conditions: students (n = 149) who participated in regular teacher-led philosophy classroom dialogues and students (n = 145) who followed a regular 10th-grade curriculum without philosophy classes. Results showed that students in the intervention condition outperformed students in both comparison conditions on referring to moral values. Regarding critical reasoning, we only found significant effects compared to the students who followed the regular 10th-grade curriculum. Findings indicate that a specifically designed dialogic intervention can enhance students’ capacities in value-loaded critical thinking.
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This study reports the evaluation of a lesson series, developed in collaboration with teachers and experts, to generate a research-based solution for teaching critical thinking through Socratic dialogue in secondary vocational education. The lesson series has been evaluated for feasibility and tailoring to different target groups of students by five citizenship education teachers and 85 students. Data consisted of self-report questionnaires by teachers and students, complemented with observations of lessons. Results show that lessons based on Socratic dialogue for teaching critical thinking to students in secondary vocational education are considered a promising educational intervention. Teachers considered the lessons as feasible and well-tailored to their students and were able to implement the lessons in their classrooms. Students were motivated to participate, and their motivation did not decrease significantly during the lesson series. At the same time, students tended to be more motivated when the value of learning to think critically for their future profession was clearly substantiated. Practical implications from the evaluation of the lesson series were that, in addition to participating in Socratic dialogue, students need clear learning objectives and short assignments to remain active.
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