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Grade 8 Math

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In Grade 8, your student learns to formulate and understand mathematical expressions and equations, including modeling an association in bivariate data with a linear equation, and solving linear equations and systems of linear equations. A student will use functions to describe quantitative relationships, analyzing two- and three-dimensional space and figures using distance, angle, similarity, and congruence, and apply the Pythagorean Theorem.
Your student will:

  • know that there are numbers that are not rational, and approximate them by rational numbers;
  • work with radicals and integer exponents;
  • understand the connections between proportional relationships, lines, and linear equations;
  • Analyze and solve linear equations and pairs of simultaneous linear equations;
  • define, evaluate, and compare functions;
  • use functions to model relationships between quantities;
  • understand congruence and similarity using physical models, transparencies, or geometry software;
  • understand and apply the Pythagorean Theorem;
  • solve real-world and mathematical problems such as volume of cylinders, cones and spheres; and
  • investigate patterns of association in bivariate data.

COMMON CORE EXPECTATIONS

  • demonstrate that there are numbers that are not rational, and approximate them by rational numbers;
  • work with radicals and integer exponents;
  • understand the connections between proportional relationships, lines, and linear equations;
  • analyze and solve linear equations and pairs of simultaneous linear equations;
  • define, evaluate, and compare functions;
  • use functions to model relationships between quantities;
  • understand congruence and similarity using physical models, transparencies, or geometry software;
  • understand and apply the Pythagorean Theorem;
  • solve real-world and mathematical problems involving volume of cylinders, cones, and spheres; and
  • investigate patterns of association in bivariate data.

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