Common Core 4th Grade Language - Form and Use Progressive Verbs

This program meets Common Core 4th grade language standards as it introduces and explores how to form and use progressive verbs.  What is a verb?  What is a participle?  What are the spelling rules for forming a participle?  What are the progressive verb tenses?  How do I form the present, past and future progressive tenses?  The answers to all of these questions are covered with detailed graphics, diagrams and exciting video, as well as on-screen, multiple-choice reviews at the end of each segment that reinforce important concepts and make learning fun.