Even before formal schooling, children develop beginning concepts related to patterns, functions, and algebra. In this activity, students use the interactive computer applet to create and study red and blue connecting-cube patterns. The interactive tool is designed so students can create the entire pattern one connecting-cube at a time, or create the pattern, two connecting-cubes at a time. The "Repeating Patterns," activity sheet, guides students to describe the different patterns, encourages them to explore different ways to interpret the patterns, and challenges students to translate the patterns generated from one representation to another. (author/sw)