Mathematics Education Research Journal · 2018 · 13 citations · 31 references
EducationMathematicsMathematics EducationElementary Mathematics EducationMathematics InstructionNumber TheoryFractions UnderstandingMathematics PedagogyNumber RecognitionNumber SenseNumeracy DevelopmentNumeral RecognitionDecimal InstructionDecomposing Three-digit NumbersMulti-digit Computation DifficultiesMulti-digit Number SenseMulti-digit Number WritingMultiple Representations Of NumbersNumber Sense AssessmentNumber Sense Instruction
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The Measurement of Observer Agreement for Categorical Data
J. Richard Landis, Gary G. Koch · Biometrics · 1977 · 78.9K citations · Full text