How do students develop subitizing skills? Find out in this blog post. You'll also learn about common mistakes when teaching subitizing in preschool, kindergarten and first grade. Plus, learn subitizing tips and tricks to fix these mistakes. Get suggestions about using subitizing quick images, plus learn about what kinds of images to use for subitizing: ten frames, dot patterns, fingers, tally marks, or others. Use these tips to make subitizing fun!