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Mathematics Performance Level Definitions

ACTAAP Grade 8 Benchmark Examinations

Mathematics Performance Level Definitions

ACTAAP Grade 8 Benchmark Examinations

PERFORMANCE LEVEL

DEFINITION

Basic

Eighth-grade students performing at the basic level exhibit evidence of conceptual and procedural understanding in the five mathematics content strands. This level of performance signifies an understanding of arithmetic operations, including estimation, on whole numbers, decimals, fractions, and percents.

Eighth-grade students performing at this level

complete problems correctly with the help of structural prompts, such as diagrams, charts, and graphs;

solve routine, real-world problems through the appropriate selection and use of strategies and technological tools, including calculators, computers, and geometric shapes;

use fundamental algebraic and informal geometric concepts in problem solving;

determine which of available data are necessary and sufficient for correct solutions and use them in problem solving; and

show limited skill in communicating mathematically.

Proficient

Eighth-grade students performing at the proficient level apply mathematical concepts and procedures consistently to complex problems in the five mathematics content strands.

Eighth-grade students performing at this level

can conjecture and defend their ideas and give supporting examples;

understand the connections between fractions, percents, decimals, and other mathematical topics, such as algebra and functions;

have a thorough understanding of basic-level arithmetic operations—an understanding sufficient for problem solving in practical situations;

are familiar with quantity and spatial relationships in problem solving and reasoning;

convey underlying reasoning skills beyond the level of arithmetic;

compare and contrast mathematical ideas and generate their own examples;

make inferences from data and graphs;

apply properties of informal geometry;

accurately use the tools of technology; and

understand the process of gathering and organizing data and are able to calculate, evaluate, and communicate results within the domain of statistics and probability.

Advanced

Eighth-grade students performing at the advanced level reach beyond the recognition, identification, and application of mathematical rules in order to generalize and synthesize concepts and principles in the five mathematics content strands.

Eighth-grade students performing at this level

probe examples and counterexamples in order to shape generalizations from which they can develop models;

use number sense and geometric awareness to consider the reasonableness of an answer;

use abstract thinking to create unique and/or alternative problem-solving techniques; and

explain the reasoning processes underlying their conclusions.

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