How children learn English is always discussed by some researchers and scholars and various methods of language teaching also examined whether plausible or not. This presenter focuses on elementary level students (Young learners) to observe and explore why CALL is useful in class and how these students learn English with CALL through action research (AR). The three students engage in task-based class activities weekly for 70 minutes and their performance tests (speaking and writing) have been analyzed to find out their improvement of communication skills. Especially, some digital educational tools lead them think more and output English actively. In short, they make use of CALL to do homework and to exchange their opinions with classmates outside of classroom. In addition, they can acquire digital device skills so they never hesitated to use the language learning online tools. This presentation explores the activities with CALL get students motivated so they gain confidence in the performance tests (speaking and writing). Overall their communication and language skills improve step by step so this development is one of good results to mention. Students’ works and classroom episodes will be also shown in this presentation.