Students can practice matching upper and lowercase letters by completing 4 sets of 10 engaging winter and spring holiday themed digital secret picture tile puzzles. These puzzles are great mouse or trackpad practice as well as being an opportunity to practice navigating a Google Slides or PowerPoint file. Digital Secret Picture Tiles are: perfect for Google Classroom, distance learning, centers, etc.self-checkinginteractive & versatile (students can play on any device - iPad, laptop, Chromebook