Ep 173: The Most Sophisticated Subtraction Strategy

Some subtraction strategies can only get you so far, but with a little more sophistication complex problems become really nice to think and reason about! In this episode Pam and Kim build and discuss the Constant Difference strategy for subtraction and use it to solve a really gnarly problem.Talking Points:Equivalence strategies are more sophisticatedHallmarks of sophisticated stategiesModeling Constant DifferenceRelational Thinking RoutineCheck out the Instructional Routine called Relational Thinking at: mathisfigureoutable.com/relational-thinkingCheck out our social mediaTwitter: @PWHarrisInstagram: Pam Harris_mathFacebook: Pam Harris, author, mathematics educationLinkedin: Pam Harris Consulting LLC