Blackboard or Discussion Board or dashboards should be integrated in the basic course structure so that studnets are encouraged to create threads of their own or respond to the postings by others. This will not only enhance their communication skills but will also serve as a very good platform for instruction and assessment. Moreover, students should have the option to upload answers in response to the assignments, either in the form of word files or in the forms of images and audio-video clips.
I would like to inform you that we already have assignment features added in the course schedule, where a student can submit the assignment file as you want the to add the files. All formats are supported to attach a word, presentation and even video. Kindly add assignments in the course.