"Curriculum Focal Points" that presented the most critical mathematical topics for each grade in elementary and middle schools. American mathematics instruction...

NCTM released Curriculum Focal Points for Prekindergarten through Grade 8 Mathematics: A Quest for Coherence. In the Focal Points, NCTM identifies what...

In mathematics, the eccentricity of a conic section is a non-negative real number that uniquely characterizes its shape. One can think of the eccentricity...

In geometry, focuses or foci (/ˈfoʊkaɪ/; sg.: focus) are special points with reference to which any of a variety of curves is constructed. For example...

In game theory, a focal point (or Schelling point) is a solution that people tend to choose by default in the absence of communication in order to avoid...

FOCAL (acronym for Formulating On-line Calculations in Algebraic Language, or FOrmula CALculator) is an interactive interpreted programming language based...

located on the optical axis of a rotationally symmetric, focal, optical system. These are the focal points, the principal points, and the nodal points; there...

trend towards reform mathematics. In 2006, the NCTM released Curriculum Focal Points, which recommend the most important mathematical topics for each grade...

"f/", which forms a mathematical expression of the entrance pupil's diameter in terms of f and N. For example, if a lens's focal length were 100 mm and...

names to facilitate using it across multiple mathematical problems. Constants arise in many areas of mathematics, with constants such as e and π occurring...

The pinhole camera model describes the mathematical relationship between the coordinates of a point in three-dimensional space and its projection onto...

Plantes developed a practical method for implementing the technique, known as focal plane tomography. It relies on mechanical movement of the X-ray beam source...

The 2006 NCTM Curriculum Focal Points have also been influential for its recommendations of the most important mathematical topics for each grade level...

human fingers used in criminology or forensic science Partial seizure or focal seizure, a seizure that initially affects only one hemisphere of the brain...

The infinity symbol (∞) is a mathematical symbol representing the concept of infinity. This symbol is also called a lemniscate, after the lemniscate curves...

The focal mechanism of an earthquake describes the deformation in the source region that generates the seismic waves. In the case of a fault-related event...

used to focus light. Such mirrors always form a virtual image, since the focal point (F) and the centre of curvature (2F) are both imaginary points "inside"...

display of uppercase letters, digits, and a few punctuation characters (the FOCAL character set), some designs needed to be twisted arbitrarily (e.g. to distinguish...

The Joint Mathematics Meetings (JMM) is a mathematics conference hosted annually in early January by the American Mathematical Society (AMS). Frequently...

In optics, a conjugate plane or conjugate focal plane of a given plane P, is the plane P′ such that points on P are imaged on P′. If an object is moved...

Reform mathematics is an approach to mathematics education, particularly in North America. It is based on principles explained in 1989 by the National...

characterized by their focal length: a converging lens has positive focal length, while a diverging lens has negative focal length. Smaller focal length indicates...

For a surface in three dimension the focal surface, surface of centers or evolute is formed by taking the centers of the curvature spheres, which are...

geometricis nec non de curva focali" (Inaugural mathematical dissertation on some geometric loci and also focal curves), doctoral thesis (University of Ghent...

passing through a focus; its half-length is the semi-latus rectum (ℓ). The focal parameter (p) is the distance from a focus to the corresponding directrix...

In mathematics, a parabola is a plane curve which is mirror-symmetrical and is approximately U-shaped. It fits several superficially different mathematical...

abstract algebra, the focal subgroup theorem describes the fusion of elements in a Sylow subgroup of a finite group. The focal subgroup theorem was introduced...

distance from the diffracting object, and also when it is viewed at the focal plane of an imaging lens. The equation was named in honour of Joseph von...

objective lens (with a 160 mm focal length) in the history of photography. It was developed by the Slovak mathematics professor Joseph Petzval in 1840...

observables that are linked by the Heisenberg uncertainty principle Conjugate focal plane, in optics Conjugal (disambiguation) Conjoint All pages with titles...