This interactive SMARTBOARD lesson allows students to determine what category words will be a part of by looking at their characteristics, their similarities, and their differences. Students will decide which part of the group does not belong or what an appropriate category heading would be. All slides are self-checking so it can easily move from a teacher directed mini-lesson to additional practice in a center or independent station. Great way for students to use their critical thinking skills and problem solve. Created with Smart Notebook 11 So SMART SOFTWARE IS NECESSARY to run this lesson. Grades 1-4 depending on the level of the need of the students.