When Are Equations True?

When are the equations true? This Card Sort was adapted from the Mathematics Assessment Project CLASSROOM CHALLENGES "Solving Linear Equations in One Variable". More here: http://map.mathshell.org/lessons.php?unit=8240&collection=8 Thank you https://twitter.com/Johnston_MSMath for the Card Sort Celebration (screen 3)! Go get 'em! https://teacher.desmos.com/activitybuilder/custom/5fd5a05a50bc6403d2bb14e2

By Cathy Yenca