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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

  • Amy Johnson

    Member
    November 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?