This is a comprehensive unit to teach students how to compress and zip files on computers. This unit is designed for middle to high school students and homeschoolers. Many students think they are knowledgeable of many skills, but will learn much with this unit. The unit is basic enough for middle school students to understand, but in-depth enough for high school students. Includes lesson plans with printable worksheets and unit rubric for grading. The unit is complete with lesson objective/standard and step by steps instructions.