Our district was part of a local consortium that provided staff development to assist in the writing of instructional units. (ascd.org)
For example, most teachers found themselves more capable of developing instructional units that require their students to use the Internet. (citejournal.org)
Learning objects (individual instructional units that can be used separately or together) seem to provide the best solution for schools that want control over how curriculum is constructed and blended. (accelerate.education)