Category Archives: It Ain’t No Repeated Addition

#mtt2k Khan Academy videos procedural v conceptual repeated addition

This is a continuation of the discussion of procedural v conceptual in the context of Khan Academy videos. It also brings in the Keith Devlin initiated debate on multiplication as repeated addition for natural numbers as opposed to an operation … Continue reading

Posted in #mtt2k Khan Academy Videos Procedural v Conceptual, Conceptual v Procedural, Conceptual v Procedural videos, It Ain't No Repeated Addition, Keith Devlin Stanford, Let's Play Math, MTT2k, Procedural Levelism, Procedural Mathematics, Recursive Mathematics, Sphaghetti Proceduralism, Uncategorized | 2 Comments

Multiplication of Negative Numbers Recursive Continuation

Recently, the subject of how to teach or justify rules for multiplication of negative numbers has come out.  The following is an approach based on the Peano Axioms. Natural numbers are 0, S(0), S(S(0))), … 1= 0′. S(0) = 1 … Continue reading

Posted in Analtyic Continuation, Analtyic Recursive Continuation, Angela Chen Chronicles Higher Education, dy/dan Dan Meyer, Inductive Definitions, It Ain't No Repeated Addition, James Tanton Math Videos, Justin Reich, Keith Devlin Stanford, Khan Academy, Math Video Series, MTT2k, MTT2k Prize, Mystery Teacher Theatre 2000, Recursion, Recursive Continuation, Recursive Definitions, Recursive Inductive Definition of Multiplication, Recusive Inductive Definition of Addition, Uncategorized | 50 Comments

Re dy/dan An Incomplete History Of The Math Edublogosphere

The blog dy/dan by Dan Meyer has a post titled An incomplete history of the math edublogsphere.  This has a comment thread of math teachers who blog and apparently regularly follow dy/dan. Number 7 Jeanette links to http://algebra1teachers.com/ This in … Continue reading

Posted in Common Core Standards Recursion, dy/dan Dan Meyer, It Ain't No Repeated Addition, Keith Devlin Stanford, Math Education Bloggers, Recursive Definitions | Leave a comment