35 Pieces Kukuli and His Friends Minky Tinky Puzzle 1st Grade Cardboard 34×24 cm 35 Pieces Acquisition Hand-eye Coordination Attention Comprehension of Part-Whole Relationship Small Muscle Development Self-Confidence Social Adaptation Analysis-Synthesis Classification-Sorting Problem Solving Especially puzzles- children's mental-physical - It is a very important activity for social and emotional development. A puzzle can be defined as the bringing together of confused, meaningless and seemingly independent pieces to form a whole during the construction phase. The process of creating this integrity requires mental skill. In this respect, the puzzle contributes to the mental development of children and enables the formation of part-whole relationships. In addition, attention and perception development - figure-ground perception - induction - deduction - reasoning - comparison - classification - sorting - analysis - synthesis - problem solving - trying alternatives - generating solutions - similarity - difference - hand eye coordination - movement time study - It also has positive benefits in terms of developing analytical thinking-reasoning-integration-matching-sequence skills.