Development of logical thinking in the child in many respects depends on in what form he obtains new information. The perception and storing of what was seen, or heard are much better when training plays games in a form. Especially for kids we created a series of the training games. And one of games of this series is "The training games: lung heavy". By means of the game "Lung Heavy" it will be simpler to child to understand a difference between two of these concepts, and also to consolidate the gained knowledge, guessing heavy or easy objects. In game it is necessary to choose from two represented objects that which answers a question: "What it is heavier?" or "That it is easier?". Having passed 15 levels, the child will receive a small bonus in the form of the flying balloons which it is possible to burst a finger. At playing the game once again, on pictures there will be new couples of objects that allows to play game not once. Play with the child our training games, it will make him attentive, assidious and will teach to think logically.