How can we help students own subtraction facts? In this episode Pam and Kim describe some basic strategies and then walk us through facilitating two Problem Strings to build subtraction relationships.Talking Points:I Have, You Need - see Episode 7 for more on I Have, You NeedPatterns in a subtraction chartGeneralizing about subtracting 9Noticing differences of 1 or 2Diagonal patterns of Constant DifferenceSubtracting to 10 Problem StringUsing Doubles Problem StringCheck out our social mediaTwitter: @PWHarrisInstagram: Pam Harris_mathFacebook: Pam Harris, author, mathematics education

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