Despite learning English formally in primary classrooms, most of the Malaysian primary learners are incapable of conveying their ideas accurately in the target language since they have limited vocabulary. Action research based on the Kemmis and McTaggart Action Research Model was carried out to alleviate the vocabulary learning challenges. Thus, the study aims are to investigate the effects of the Poly Category Mind Map for vocabulary development of third-year students. Thirty students from the third-year suburban school in Mersing, Johor participated in the study. Vocabulary pre-test and post-tests used as the instruments of collecting the data. The results of the post-test at the end of the second cycle showed a significant difference between the mean scores before and after using Poly Category Mind Map to develop vocabulary (p>0.05). The use of Poly Category Mind Mapping helped students in understanding and remembering the words, their meaning, and spelling precisely. The findings concluded that using the features of Poly Category Mind Map, which are the pictures, keywords, and grouping of words aided the students in learning vocabulary. This study hopes to encourage students, teachers, and curriculum designers to integrate Poly Category Mind Mapping strategy in English classrooms. Researchers can also utilise the Poly Category Mind Mapping in learning skills of the English Language such as reading and writing for further studies.

中文翻译：

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使用Poly Category Mind Map进行词汇开发的有效性

尽管在小学课堂上正式学习英语，但由于词汇量有限，大多数马来西亚小学学习者无法以目标语言准确传达他们的想法。开展基于 Kemmis 和 McTaggart 行动研究模型的行动研究，以缓解词汇学习的挑战。因此，本研究旨在探讨多元类别思维导图对三年级学生词汇发展的影响。来自柔佛丰盛港市郊区三年级学校的 30 名学生参加了这项研究。词汇前测和后测用作收集数据的工具。第二个周期结束时的后测结果显示，使用Poly Category Mind Map开发词汇前后的平均分数存在显着差异（p>0.05）。Poly Category Mind Mapping 的使用帮助学生准确地理解和记住单词、它们的含义和拼写。研究结果得出结论，使用Poly Category Mind Map的特征，即图片、关键词和单词分组有助于学生学习词汇。本研究希望鼓励学生、教师和课程设计者将 Poly Category Mind Mapping 策略融入英语课堂。研究人员还可以利用 Poly Category Mind Mapping 来学习英语语言的技能，例如阅读和写作以进行进一步研究。单词分组有助于学生学习词汇。本研究希望鼓励学生、教师和课程设计者将 Poly Category Mind Mapping 策略融入英语课堂。研究人员还可以利用 Poly Category Mind Mapping 来学习英语语言的技能，例如阅读和写作以进行进一步研究。单词分组有助于学生学习词汇。本研究希望鼓励学生、教师和课程设计者将 Poly Category Mind Mapping 策略融入英语课堂。研究人员还可以利用 Poly Category Mind Mapping 来学习英语语言的技能，例如阅读和写作以进行进一步研究。