This study is to evaluate the implementation of Task Activities based on CALL which consist of observing, questioning, exploring, and communicating. The developed materials are nine chapters that had been implemented in two different classes of SMPN 1 Gresik and SMPM 4 Gresik in Indonesia. Of quesionnaires and interviews, the results indicate that the materials that have been developed already meet the standards for preparing and getting excellent response from users, especially teachers and students in several aspects, namely; competencies and objectives, content material, relevant activities, media which was authentic and interesting, and the fulfillment of the diversity of types of exercises that are available in each chapter. So that these materials can conclusively give the student easier understanding, interesting, and fun learning, because these materials have been equipped with the exercises both in class and individually. This study implies that combination of task based activities and CALL really generates better opportunities to create English Teaching more innovative.