Make Math Moments Academy › Forums › Mini-Course Reflections › The Concept Holding Your Students Back › Lesson 4-4: Sparking Curiosity & Fuelling Sense Making With Additive Thinking – Discussion › Reply To: Lesson 4-4: Sparking Curiosity & Fuelling Sense Making With Additive Thinking – Discussion
MemberNovember 20, 2021 at 5:58 pm
I was thinking about homemade shoe deodorant with equal parts rubbing alcohol and apple cider vinegar and a few drops of tea tree oil. I have an 8 oz spray bottle. If I use 3 oz of rubbing alcohol, how much apple cider vinegar would I need and how much room will be left in the bottle?
If I wanted to use fractional parts I could state that the bottle was a cup size. Could I use 2/3 a cup of rubbing alcohol? Why or why not?