SOLVING EQUATIONS, by Jose L. García

 

SOLVING EQUATIONS

We divided the class in groups of three students. Only one of them has the book.

·         The first student read the exercise and transfrom the tex into a table/schema.

·         The second student transform the data into an ecuation.

·         The third student solve the equation.

The students will chage their role in each exercise

Example:

A group of friends have gone to a sandwich bar to have a snack. A baguette costs one euro more than a sandwich. They pay 11 euros for three sándwiches and two baguettes. How much does a sándwich cost? What about a baguette?

 

Affecttive-engagement: Pupils are able to translate text to data schema.

 

Recognition-Representation: Pupils are able to translate an schema to an equation.

 3x + 2 (x+1) = 11

 Strategic-action & expression: Pupils are able to solve the equation.

         3x + 2x + 2 =11

5x = 9

X= 9/5 = 1,8 €

                                             

                 Sandwich cost: 1,8 €                           Baguette cost: 2,8€