隨著全球化的發展，全世界對有效的英語溝通的需求一直在增加。在英語教學中，缺乏有意義的演練情境來提高學生的口語表達能力，始终是最大的挑戰之一。社會文化語境是學生熟悉的情境，學生根據熟悉且認同的社會文化情境，對外籍人士進行說明與溝通，能夠產生強烈的文化自尊與熟悉感，進而增進對學習的接受度。傳統的語言教室，比較無法提供配合使用者個人興趣或需求的有意義的學習情境，人工智慧聊天機器人能夠提供多模式的訊息，包括影片，圖片，語音及文字等等，使用者也可以透過語音辨識系統如ARS與關鍵字系統KWS等，直覺地獲得有興趣且符合個別需求的訊息。然而，如果没有適當的學習鷹架，學生面對大量的資訊，往往無法將概念和訊息组織成完整的表達形式，順利進行溝通。概念圖是表示概念知識结構的一種有效的可視化認知工具，能在任務前的规劃過程中，預先畫出重點想法和連接思想的圖表，以支持學生理解概念的意義，並透過系统的组織和歸納，將複雜的知識轉化為可視化的概念圖，讓學生進行有意義的學習。本文旨在研究將概念圖與人工智慧聊天機器人整合，提供EFL學生在英語口語表達前的練習與組織，並探究其對EFL學生在學習成绩、學習動機和自我效能等方面的影響。實驗结果顯示，使用概念圖整合人工智慧聊天機器人方法（CM-AI）的學生，在學習成绩、口語溝通焦慮等方面都比使用傳統人工智慧方法（C-AI）的學生有更佳的表現。

This study examines four elements of EFL students’ oral presentation performance, motivation, self-efficacy, and oral communication apprehension, in an EFL speaking course that uses the concept mapping-integrated AI chatbot approach. The study found that a preparatory concept mapping task before the AI chatbot sessions improved students’ perceived motivation, self-efficacy, and decreased oral communication apprehension. Taking into account insights from EFL research, the three-week task-based activities are organized to help high school students to enhance English oral presentation performance. A quasi-experimental design was conducted in a Northern Taiwanese high school, thirty-six high school students were randomly assigned into experimental group and control group, the experimental group students used concept mapping-integrated AI chatbot approach (CM-AI) while the control group students used conventional AI chatbot approach (C-AI) in the online sociocultural contexts with international students. Results reveals that concept mapping-integrated AI chatbot approach (CM-AI) can improve students’ oral presentation performance, motivation and self-efficacy better than those using the conventional AI chatbot approach (C-AI). EFL instructors should use concept mapping in a pre-task planning to support learners engaged in AI chatbot-based speaking activities with native or non-native speakers. When the students used concept mapping to prepare for the AI chatbot-based speaking activities, they exhibited higher motivation and self-efficacy in their oral presentation performance in the online sociocultural contexts.

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