Benchmark 12B: Habits of Mind : Computation and Estimation
(grades 3-5, page 290)
 
  • Add, subtract, multiply, and divide whole numbers mentally, on paper, and with a calculator. (1 of 5)
    • Standard 8-1 page 44, Grades K-4
    Model, explain, and develop reasonable proficiency with basic facts and algorithms

    Standard 8-2 page 44, Grades K-4
    Use a variety of mental computation and estimation techniques

    Standard 7-1, page 94, Grades 5-8
    Compute with whole numbers, fractions, decimals, integers, and rational numbers

    Standard 7-4, page 94, Grades 5-8
    Select and use an appropriate method for computing from among mental arithmetic, paper-and-pencil, calculator, and computer methods
  • Use fractions and decimals, translating when necessary between decimals and commonly encountered fractions halves, thirds, fourths, fifths, tenths, and hundredths (but not sixths, sevenths, etc.). (2 of 5)
    • Standard 12-5 page 57, Grades K-4
    Apply fractions and decimals to problem situations
  • Judge whether measurements and computations of quantities such as length, area, volume, weight, or time are reasonable in a familiar context by comparing them to typical values. (3 of 5)
    • Standard 5-4 page 36, Grades K-4
    Apply estimation in working with quantities, measurement, computation, and problem solving

    Standard 8-4 page 44, Grades K-4
    Select and use computation techniques appropriate to specific problems and determine whether the results are reasonable

    Standard 3-2 page 29, Grades K-4
    Use models, known facts, properties, and relationships to explain their thinking

    Standard 7-6, page 94, Grades 5-8
    Use estimation to check the reasonableness of results

    Standard 13-4, page 116, Grades 5-8
    Understand the structure and use of systems of measurement

    Standard 13-5, page 116, Grades 5-8
    Extend their understanding of the concepts of perimeter, area, volume, angle measure, capacity, and weight and mass
  • State the purpose of each step in a calculation. (4 of 5)
    • Standard 4-1 page 32, Grades K-4
    Link conceptual and procedural knowledge

    Standard 8-1 page 44, Grades K-4
    Model, explain, and develop reasonable proficiency with basic facts and algorithms

    Standard 7-2, page 94, Grades 5-8
    Develop, analyze, and explain procedures for computation and techniques for estimation
  • Read and follow step-by-step instructions in a calculator or computer manual when learning new procedures. (5 of 5)
    • Standard 8-3 page 44, Grades K-4
    Use calculators in appropriate computational situations

    Standard 7-4, page 94, Grades 5-8
    Select and use an appropriate method for computing from among mental arithmetic, paper-and-pencil, calculator, and computer methods