This document discusses using a unit based on problem-solving strategies to develop historical thinking skills for secondary school students. It focuses on using this approach to address issues with students' historical thinking, and outlines the problem-solving strategy and key historical thinking skills it aims to foster, such as analyzing causes and effects, comparing and contrasting viewpoints, and interpreting historical sources.

1. THE EFFECTIVENESS OF UNIT BASED ON PROBLEM-
SOLVING STRATEGY ON DEVELOPING THE
HISTORICAL THINKING SKILLS FOR SECONDARY
SCHOOL STUDENTS

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8. The problem

9. The problem solving
strategy

10. Historical thinking

11. Historical thinking skills

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