<![CDATA[Broadminded character is understood by one's ability to know oneself, make decisions, analyze patterns, be broadminded, contribute positively, empathize, know one's limits, capture the essence of the problem, have self-awareness, become a reference for opinions, and have integrity. Bullying often occurs in the world of education, which reflects a lack of wisdom in behaviour. The rise of bullying cases requires in-depth education to form a broadminded character. This study aims to develop a textbook on home civilization based on PjBL to foster broadminded character. This study used the ADDIE-type Research & Development (R&D) method. Ten certified elementary school teachers were involved in conducting a needs analysis, five teachers and five experts as expert judgment validators and eight children aged 10-12 years were involved in a limited trial of the book. The results showed that 1) the book on PjBL-based home civilization to foster broadminded character was developed with ADDIE stages; 2) the quality of the textbook was classified as "very good" so that it did not require revision (3.89 on a scale of 1-4); 3) the application of this textbook had a significant effect on broadminded character (p < 0.05) with a category effect (r = 0.992) or equivalent to 98% which was classified as a "large" effect category. The level of effectiveness is high (89.61%).]]>
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