与《阳阳中文》（对话版）第四册课本配套的相机互动学习APP，使用手机的照相功能识别课本，然后播放相应的讲解视频课件。想学哪里照哪里，无需上网，不耗流量，随时随地都可学习。
对话版第四册APP，是《阳阳中文》（对话版）第四册在线课程用户的离线学习辅助工具，需要和《阳阳中文》（对话版）第四册课本配套使用，不能单独运行使用。欲下载安装此APP，请确认手中有相应的课本，或者前往阳阳中文网站（www.youngchinese.com）购买对话版第四册在线课程，获取相应的课本后再下载使用。
《阳阳中文》（对话版）第四册属于中级课程，适用于非中文背景掌握500字词以上9-11岁学生（4-5年级）；认读115个生字和90个双/多音节词，阅读12篇课文并讲述课文内容；能详细介绍自己和他人；描述健康、锻炼、生活习惯；表达餐饮等话题；掌握汉语拼音，学会电脑输入中文；运用正确语音语调朗诵少儿诗歌；能与老师或同学互动，完成课堂练习；能独立完成每日家庭作业。
>>> This intermediate level course is suitable for learners aged 9-11 in the fourth or fifth grade who have mastered a minimum of 500 characters.
>>> Upon completion, learners will be able to grasp 115 new characters and 90 new bi-syllabic and multi-syllabic words and be able to reproduce the 12 texts studied in their own words.
>>> Learners will be able to introduce themselves and others; and talk about topics such as health, sports, personal habits, and eating.
>>> Learners will command the pinyin system, have satisfactory Chinese keyboard skills, and be able to recite simple poems with good pronunciation and appropriate intonation.
>>> Learners will learn to interact with peers and teachers in completing classroom activities and independently complete daily homework.