The document describes using a document camera called an ELMO to model lessons for students. It shows a worksheet about a dog catching a robber that has blanks for students to fill in. The teacher uses the ELMO to display the worksheet and model how to fill in the blanks, not just telling students what to do but showing them. Both students and teachers can use the ELMO. The teacher reflects that using the ELMO is beneficial for instruction and student learning as it allows modeling tasks and sharing of student work.