The Santillana Construyendo Mundos project for 3rd Primary Conocimiento del Medio offers a 360° Evaluation system, including diagnostic and unit-specific tests, alongside reinforcement and extension materials. These materials cover key subjects such as living things, the human body, earth systems, and technology. Access the evaluation documents via the official portal at 2uhuhojkojojento del medio_3Prm_CM_cast (2).docx