Teacher2Teacher Q&A #315

Value of two-column proofs

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 Description: Should proofs be de-emphasized to allow time to cover more material? Level: High School (9-12) Math topic: Euclidean Plane Geometry Ed. topic: Pedagogical Research, NCTM Standards

 Original Question/Response ``` 17 Mar 98 ```   Value of two-column proofs by Steve Taylor ``` 17 Mar 98 ```   Re: Value of two-column proofs by Claudia ``` 17 Mar 98 ```   Re: Value of two-column proofs by Mary Lou

 Public Discussion ``` 19 Oct 99   ``` Value of two-column proofs in geometry by Robbie ``` 03 Apr 02        ``` Absence of value of two-column proofs in geometry by Alexander Bogomolny ``` 16 Mar 02   ``` two-column proofs by Marsha ``` 16 Mar 02   ``` Two column proofs by Ed Isaacs ``` 18 Mar 02   ``` Two-column proofs by Rick Norwood ``` 18 Mar 02   ``` Value of two-column proofs by Danny Rayner ``` 07 Apr 02   ``` two-column proofs, why and what is a flow proof by meg maenpaa ``` 06 Dec 05        ``` Re: two-column proofs, why and what is a flow proof by joe ``` 15 Mar 02        ``` Re: Value of two-column proofs by Joetta Mark ``` 12 Nov 07            ``` Re: Re: Value of two-column proofs by Lydia ``` 15 Mar 02        ``` Re: Value of two-column proofs by Gordon Bockus ``` 16 Mar 02            ``` Re: Re: Value of two-column proofs by LH Bushnell ``` 16 Mar 02        ``` Re: Value of two-column proofs by C.J. ``` 17 Mar 02            ``` Re: Re: Value of two-column proofs by Loyd

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