Headu designs fun, high-quality games, toys, books and apps to help teach children essential skills using an innovative teaching method. A truly original game of observation devised for children of pre-school age who are curious to discover the world around them. The child observes attentively and creates the correct relationships between different categories of affiliation, developing logical thought of comparisons and regroupings and his/her visual memory. The game takes place in different ways. 1. Re-assembling the 12 mini puzzles - After arranging all 36 tokens on a game board, the child can re-arrange the 12 mini puzzles. Each puzzle consists of 3 pieces and connect subjects belonging to the same category classification: felines, Canidae, bears, insects, musical string instruments, sweaters, balls to play with, buildings for housing. It is important to leave the child all the necessary time for independently making the correct associations which, thanks to the self-correcting inserts, may also verify one’s own associations independently, and to learn from one’s own mistakes Once the mini puzzles have been assembled, the adult can ask several questions in order to continue to play: “Where is the ladybird?”, “Which is the guitar?”, “Which are the means of transport?“. 2. Game with an adult - Place all the tokens of the puzzles on a game board and separate them so that the adult has 12 pieces, i.e. one piece for each mini puzzle, while the child has all the remaining tokens in front of him or her. The adult takes a card without showing it to the child. Having done this, he or she must – by means of clues – make the child understand which subject is represented in the token. For example, he/she can say, “Birds build their nests there.” In this case, it is necessary to find tokens with trees or else says, “They serve to learn what time it is.”, and so tokens with pictures of watches must be found.