When am I ever going to use this? How many times do you hear these words in a math classroom? Students have been learning how to solve systems of linear equations using different methods including graphing, substitution and elimination. Now that they have experience and knowledge of these methods they will have the opportunity to apply their skills by solving problems involving real life situations using systems of equations in the activity, Word Problems Using Systems of Linear Equations.
As students progress through this activity they will see the application of solving systems of linear equations in situations such as hiking and ordering salads and sandwiches. They will work through numerous problems practicing solving systems and using reasoning to determine the best method for each unique situation.
So when will you ever use the substitution method in real life? It might just be the next time you go to rent a video game. Check it out!