Modelo Matemáticas 6º-11º
Razonamiento Proporcional
El Razonamiento Proporcional implica una comprensión de la razón y las relaciones entre razones. Las razones expresan una relación de parte a todo que puede representarse en forma de fracciones, porcentajes o tasas. El Razonamiento Proporcional es un componente esencial de la competencia aritmética en la escuela primaria y proporciona acceso a habilidades matemáticas superiores, incluyendo álgebra, geometría, y probabilidad y estadística.
Ideas Principales
Los estudiantes comienzan con una comprensión informal de las relaciones proporcionales (por ejemplo, repartir o compartir equitativamente, o relacionar proporciones en áreas sombreadas de formas). Este conocimiento informal se desarrolla a lo largo de varios años en una comprensión conceptual más formal a medida que conectan diferentes aspectos del Razonamiento Proporcional, incluyendo:
- Aprender a hacer comparaciones basadas en la multiplicación en lugar de la suma.
- Aprender qué aspectos de una proporción pueden cambiarse (es decir, los valores específicos) y cuáles deben ser constantes (es decir, la relación multiplicativa entre los valores).
- Aprender a hacer unidades compuestas —es decir, aprender a reconceptualizar una proporción como una sola entidad.
Aunque el Razonamiento Proporcional es desafiante para muchos estudiantes en los primeros años, aquellos con discalculia a menudo demuestran dificultades persistentes que no se resuelven sin intervención.
Referencias
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