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Assessment_Guide_For_Educators_Math (Page 55)
55 Assessment Guide for Educators: Mathematical Reasoning Appendix D Proportion/proportional (do not substitute ratio): the relationship of two equivalent ratios or a description of the relationship between two mathematically-related categories Pythagorean theorem: a mathematical formula that describes the relationship between the sides of a right triangle, a2 + b2 = c2, where a and b represent the sides adjacent to the right angle, and c represents the hypotenuse (See hypotenuse) Quadratic equation (do not substitute expression, function, linear equation): an equation of the form ax2 + bx + c = 0; when graphed on the coordinate plane, a quadratic equation presents as a parabola (U-shape) Ratio (do not substitute proportion, rational): the relationship between two categories expressed mathematically; ratios may use numbers and/or variables Rational number: any number that can be represented as a fraction where the numerator and denominator are both integers (denominator may not be zero) Reasoning (do not substitute evidence, meaning, conclusion): the process of forming conclusions, judgments, or inferences from evidence Scientific notation: a method for expressing very large or very small numbers, consisting of a number (often a decimal) between 1 and 10, which is then multiplied by a power of 10 Slope: a representation of the direction and steepness of a straight line graphed on the coordinate plane, expressed as a positive or negative number, or zero Solution/solve (do not substitute calculation, computation): the process of determining the answer to a mathematical problem (more general than calculation and computation, which refer to a specific technique) Stance (do not substitute claim, argument, argumentation): the position on which an author bases an argument (e.g., pro or con) Support (do not substitute justify): to establish by providing appropriate facts and evidence (either quantitative or textual). Synthesis/synthesize (do not substitute apply, summarize, analyze): to combine elements or ideas from multiple materials into a unified, if complex, whole