Open Up Closed Math Questions

 I would like to change my thinking classroom questions. My original questions are: 

    Do x=a and y=b represent a linear relation? 

    Are they linear functions?

    Any real-world situation can be represented by them?

These are not very open since two of them are yes/no questions. I will still keep them, but I will move them to the section of inquiry-based learning.

I got inspiration from Open Middle Math, Menu Math and the strategy of Additional Conditions from Thinkers. 

The new thinking classroom questions are the following:

    Using the digits 1 to 9, fill in the boxes to create a table of values that represent a linear function.

    Adaptation: Using the digits 1 to 4 at most one time each, fill in the four boxes to create a table of values that represent a linear function. (PuntMat)

    Enrichment: Using the digits 1 to 9 at most one time each, fill in the boxes to create a table of values that represent a linear function. (Linear Function from Table of Values)