Middle School Math (Grade 6)

Student Learnings: What students should know and be able to do

Mathematical Reasoning Standard

  • Apply skills of mathematical representation, communication and reasoning throughout the remaining four content strands.
  • Assess the reasonableness of a solution by comparing the solution to appropriate graphical or numerical estimates or by recognizing the feasibility of a solution in a given context.
  • Appropriately use examples and counterexamples to make and test conjectures, justify solutions and explain results.
  • Translate a problem described verbally or by tables, diagrams or graphs, into suitable mathematical language, solve the problem mathematically and interpret the result in the original context.
  • Support mathematical results by explaining why the steps in a solution are valid and why a particular solution method is appropriate.
  • Determine whether or not relevant information is missing from a problem.
  • Use accurately common logical words and phrases such as “and,” “or,” “if … then …,” “unique,” “only if.”

Number Sense Standard

  • Use positive and negative rational numbers, represented in a variety of ways, to quantify information and to solve real-world and mathematical problems.
  • Find, represent and use percentages in real-world and mathematical problems, including percentages greater than 100% and less than 1%.
  • Use the relationship between moving the decimal point and the operations of multiplication or division by powers of ten to simplify calculations.
  • Determine the prime factorization of positive integers.
  • Order and compare integers, fractions, decimals and mixed numbers with >, < and =.
  • Locate and compare positive and negative rational numbers on a number line.

Computation and Operation Standard

  • Compute fluently and make reasonable estimates with positive and negative rational numbers in real-world and mathematical problems.
  • Understand the meanings of arithmetic operations and factorization, and how they relate to one another.
  • Appropriately use calculators and other technologies to solve problems.
  • Apply the correct order of operations and grouping symbols when using calculators and other technologies.
  • Use addition, subtraction, multiplication and division of multi-digit whole and decimal numbers to solve multi-step real-world and mathematical problems.
  • Multiply and divide, without a calculator, numbers containing up to three digits by numbers containing up to two digits, such as 347 / 83 or 4.91 x 9.2.
  • Add, subtract, multiply and divide common fractions and mixed numbers as well as fractions where the common denominator equals one of the denominators.
  • Apply the correct order of operations including addition, subtraction, multiplication, division and grouping symbols to simplify and evaluate numeric expressions.
  • Use rounding and estimation with integers, decimals and fractions to solve real-world and mathematical problems.

Algebra (Algebraic Thinking) Standard

  • Apply arithmetic operations in the correct order to simplify and evaluate numeric expressions in real-world and mathematical problems.

Measurement Standard

  • Make calculations of time, length, area and volume within standard measuring systems, using good judgment in choice of units.
  • Solve problems requiring conversion of units within the U.S. customary system and within the metric system.
  • Find the area and perimeter of rectangles, squares, triangles and parallelograms by measuring, using a grid or using a formula.
  • Express measures of time and distance as fractions, mixed numbers and decimals to solve real-world and mathematical problems.
  • Measure, identify and draw perpendicular and parallel lines, angles and rectangles by using appropriate tools such as straightedge, ruler, compass, protractor or software.

Spatial Sense Standard

  • Recognize the relationship between different representations of two- and three-dimensional shapes. Understand the effect of various transformations.

Geometry Standard

  • Identify a variety of simple geometric figures by name, calculate various quantities associated with them and use appropriate tools to draw them.
  • Use facts about angles including the relationship between complementary angles, supplementary angles and the angles within triangles to solve real-world and mathematical problems.
  • Classify triangles as equilateral, isosceles or scalene, and the right, acute or obtuse.

Patterns and Functions Standard

  • Demonstrate understanding of the rectangular coordinate system.
  • Demonstrate understanding of the four quadrants in a rectangular coordinate system by writing and plotting ordered pairs.
  • Predict the position and orientation of simple geometric shapes under transformations such as reflections, rotations and translations.
  • Identify symmetries in three-dimensional shapes.
  • Create models of three-dimensional geometric shapes from two-dimensional representations.

Data and Statistics Standard

  • Represent data and use various measures associated with data to draw conclusions and identify trends.
  • Understand the differences and appropriate use of mean, median and mode.
  • Find the median and possible outliers.
  • Collect, organize and represent categorical and numerical data with tables and bar graphs.

Probability Standard

  • Calculate and express probabilities numerically, and apply probability concepts to solve real-world and mathematical problems.
  • Generate and display data in graphs and tables to estimate experimental probabilities.
  • Represent all possible outcomes for a probability problem with tables, grids and tree diagrams to calculate probabilities and draw conclusions from the results.

 

Instructional resources used for this curriculum:

Copyright 2004, Holt Rinehart Winston Publishing
Middle School Mathematics, Course 1

Mathematics
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