CCSS.Math.Content.8.EE.C.7

Solve linear equations in one variable.

CCSS.Math.Content.HSA.REI.A.1

Explain each step in solving a simple equation as following from the equality of numbers asserted at the previous step, starting from the assumption that the original equation has a solution. Construct a viable argument to justify a solution method

This task asks students to construct arguments for solving equations using definitions of various mathematical properties. Within the task students are required to examine arguments with errors and create constructive responses to correct work shown. The task also asks students to create their own arguments.

This task asks students to find errors within work. This is not something students are accustomed to doing and promotes students to consider common errors in solving equations. I would suspect that within the speed dating activity students will struggle to agree on arguments of properties of equality as well as methods for solving equations.

As possible modifications for this task. The levels of problems could be adjusted to meet the needs of various level students. For lower level students, 1 step equations could be put into place, and for higher level students the variable could be on both sides of the equation. Beyond this, the lower level students could be given an example sheet of problems like those on the practice with definitions of the various mathematical properties.