Each of the 23 lessons in this unit boasts three learning activities. First students use a dictionary to help write sentences about three words that have been presented. Each word relates to a yet unknown ?core? word. Next, students complete a dot-to-dot picture that reveals an image of the core word. Finally, having identified the core word, students are asked two research questions about it. The answers to are easily found in an encyclopedia or other resource book. In addition to vocabulary building, the dot-to-dot activities give students practice counting - by odd numbers, by 2?s, starting with 35, and so on.