orologio en CB01 OFFICIAL. Take a dive with the smartest fish in the sea! Fish School Junior is in session and toddlers are going to love what Professor Shark has in store for his class! Today's class is all about math! Our little fish geniuses are going to learn subtraction. This underwater 3d animated learning video is great for Pre-K children and up! Join the fun with Fish School Junior: Learning Subtraction!