Current reform efforts in the United States arecalling for substantial changes in the
natureand role of proof in secondary schoolmathematics–changes designed to provide all …

We report results from an analysis of responses to a written question in which high-attaining
students in English schools, who formed part of a longitudinal nation-wide survey on proof …

RESULTS AND DISCUSSION Question Ll was devised to investigate whether students
could distinguish between a logical implication (J oe's statement) and its converse (Fred's …

Heid describes the successful use of a computer algebra system (CAS) by Kevin, a seventh-
grade student, as he worked on a problem involving functions far more difficult than the …

A conferência de John Olive, da Universidade da Geórgia, EUA, debruça-se sobre as
implicações da utilização dos AGD (ambientes geométricos dinâmicos) no ensino e na …

It is generally acknowledged that North American high-school students are weak at
producing proofs and have a poor understanding of the concept. In addressing this situation …

In part a) 13 percent of students correctly stated from the outset that Joe's and Fred's
statements are not saying the same thing, with a further 15 percent changing their answer …