Make Math Moments Academy › Forums › Mini-Course Reflections › The Concept Holding Your Students Back › Lesson 4-3: Relating Addition and Subtraction – Discussion › Reply To: Lesson 4-3: Relating Addition and Subtraction – Discussion
MemberNovember 24, 2021 at 8:28 pm
Coby’s grandma gave him $10 to go to the Merc (our convenience store).
Coby brought her $4 as change.
How much did he spend?
Students can either subtract from 10 or add up from 4.
What I love is the different structures students can use to solve this equation:
the part/part/whole model, the number line or the balance scale. When we start solving equations, I do have my students begin with a website where they use a balance scale, but I love the idea of anchoring that first to these other models. I also am happy to know that I have a model on my Smartboard!