As the study progressed, the students formed more robust understandings of degree and radian measures by constructing an arc length image of angle measures; the students' quantification of angle ...

GCSE Eduqas Circles, sectors and arcs - Eduqas Arc length Circles are 2D shapes with one side and no corners. The circumference is always the same distance from the centre - the radius. Sectors ...

GCSE AQA Circles, sectors and arcs - AQA Sector area Circles are 2D shapes with one side and no corners. The circumference is always the same distance from the centre - the radius. Sectors ...

Samuel A. Livingston, Sooyeon Kim, The Circle-Arc Method for Equating in Small Samples, Journal of Educational Measurement, Vol. 46, No. 3 (Fall 2009), pp. 330-343 ...