The Learn-Around Playground by LeapFrog is a fantastic educational toy. We purchased it on clearance at Toys R Us after Christmas last year.
Our son has played with it for hours and hours. It's great for the developing toddler. It uses audio, visual, and tactile senses. Additionally, motor skills are sharpened just by playing with and activating the toys many features (pushing buttons, swinging little pendulums, turning switches and more). Lights are color coordinated with numbers. There are songs for each number that play when the corresponding buttons are pushed.
In all, it helps to teach letters, numbers, songs, textures, colors, opposites and more. LeapFrog is a great company, and we've really been pleased with their products. We own many others. This particular item holds a developing toddler's interest and exposes him or her to essential skills and learning milestones.