This packet is usable by the teacher the minute the class begins. In the text, Ethan and Amanda need to write a paper about their future career, which leads to a conversation about submersibles and underwater exploration. As they review what they learned in class, students reading the story will learn, too. The packet also includes cross-curricular worksheets and a section for the teacher with additional teaching ideas. It can be used as a complete unit or as a break between lessons.