Journals / International Journal of Instruction / 2012 / Cilt: 5 Sayı: 1Analyzing Algebraic Thinking Using “Guess My Number” ProblemsBarba PATTON, Estella De Los SANTOSJournalInternational Journal of InstructionIssue2012 · Cilt: 5 Sayı: 1Pages1–1DOI—Keywords: -