Make-believe games are very common in this age-group, so it is best to provide appropriate educational toys. Costumes of their favorite cartoons heroes or heroines should be an opportunity to use as accompaniment for their educational toys. Educational toys for this purpose can take the forms of teddy bears and other stuff toys, dolls, toys that reinforce arts and craft materials. Another unique educational toy is the "Scooby-Doo Funland Frenzy". This game is for children in the 4 to 6 age range. Kids will be able to learn math, logic and spelling while having a wild and exciting adventure at a haunted amusement park. Using the Vtech V.Smile Learning System, kids will only have to put in a so-called smartridge and they can play AND learn all day! These new toys encouraged children to dabble in art, music, different foreign and local languages, and even poetry. The strong demand for educational toys and games for children has urged major retailers, like Toys "R" Us, to allocate shelves upon shelves for these kinds of toys. And because more and more households are transforming into two-income families, it is likely that the demand will grow further as parents seek products that would try to fill their absence during their children's formative learning years. Indeed, in this day and age, often the only way for a person to advance is to be mentally and emotionally equipped to face the challenges of the world. And since infants are the most receptive to new things, because their minds are still unmuddled and untainted with the ways of the world, they are the best subjects for educational toys. In fact, in 2000 alone, during the rise of the demand for children's educational toys, LeapFrog's sales soared by a whopping 120%. Imagine how many products it is selling now! The increase in demand for educational toys, LeapFrog products, in particular, came after parents started to appreciate and realize the value of play brings to their kids' physical and psychological growth. Parents, therefore, try to go through great lengths to buy their children means of entertainment that would encourage not only enjoyment but also learning. They try to compensate for their absence during children's homework making time by providing them with the best educational toys there are - no matter the price tag.