Double Click 1 includes 4 DVDs that combine real references, in the style of television documentaries, with 2-D or 3-D animation stories. The language program is based on the relevant course books. The DVDs can be used for practice at home or in the classroom, as part of any lesson, or as supplementary material for any course of the same level. Double Click 1 - 4 is accompanied by activity books that are used with the DVDs.