Jornada da Matemática is a cyber-physical educational game designed to support arithmetic learning among children aged 6 to 10 through the integration of tangible and digital components. The system employs 3D-printed Base Ten Blocks connected to a digital application developed in Flutter. A weighing module composed of a load cell, HX711 amplifier, and Arduino Uno microcontroller detects the blocks placed by the player and estimates the represented numerical value. The software compares this value with the expected result and provides immediate feedback. Initial evaluations confirmed hardware accuracy and system reliability, indicating potential to enhance engagement and conceptual understanding.