Do you ever fall into the "off by one" trap? Do your students ever get confused about counting objects vs counting distance? In this episode Pam and Kim use a Problem String to help build intuition about everyday subtraction problems.Talking Points:Experience a Problem String to build relationshipsFencepost Problems are all over the placeStudents can't just pluck numbers out of Fencepost problemsCathy Fosnot's replacement unit, "Measuring For the Art Show"Other places these kind of problems show upKim explains her strategySee episode 111 for more about "Measuring For the Art Show"!Check out our social mediaTwitter: @PWHarrisInstagram: Pam Harris_mathFacebook: Pam Harris, author, mathematics education

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