Sistema de ecuaciones con dos variables
Razones y proporciones
Problemas de Enunciado
Planteo de ecuaciones usando modelo gráfico. Inducción.
Problema de edades. Induciendo el planteo de ecuaciones.
Think harder with your answer.
Nice activity for maths' history, fractions and equations. The idea is read only the text... because the point is just think and write the equation.
Funny way to introduce maths' history and to look back to fractions and equations.
This is an old problem, which could be use to explain some maths' history, fractions and equations.
The point is just think and write the equation. Solving is easy.
It was based on a Maths Olympics' exercise in my region. I have adapted for 12 years old kids.
Solve both equotions to use the results on final fractions' sum.