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Direct linkErvin-Kassab, Lara; Roddick, Cheryl; Vickery, Alison; Tapper, Juliana – Mathematics Teacher: Learning and Teaching PK-12, 2020
While participating as a mentor teacher in a professional development project, Alison Vickery, a middle school teacher, developed a strategy: claim-rule-connection (CRC). The "claim" was the answer or response to the question; the "rule" was the theorem, fact, or proof; and the "connection" was an explanation of how…
Descriptors: Logical Thinking, Mathematics Instruction, Mathematical Logic, Validity
Clarkson, Kelsey A.; Tobias, Jennifer M. – Mathematics Teacher: Learning and Teaching PK-12, 2020
Representing repeating nonterminating decimals as rational numbers is a topic introduced in the seventh-grade Common Core State Standards for Mathematics. According to Content Standard 7.NS.2.D., students should be able to represent a rational number as a decimal and understand that the decimal will either end in zeros or eventually repeat (NGO…
Descriptors: Secondary School Mathematics, Number Concepts, Arithmetic, Mathematics Skills
