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Skills Index, 2010-2011

SKILLS INDEX of mathematical skills and concepts covered in Scholastic MATH Magazine during the 2010–11 year through the current issue. After the skill, we list the issue date(s) and first page of the article in which the skill is covered.

NUMERATION AND NUMBER CONCEPTS
Combinatorics: Oct. 18, p. 2; Jan. 10, p. 2; Feb. 21, cover; May 2, p. 8
Estimation: Sept. 6, p. 4
Expanded form of numbers: Sept. 27, p. 14
Factors: Sept. 6, p. 10; Oct. 18, cover; Oct. 18, back page; Nov. 8/22, back page; Jan. 10, p. 8; May 2, p. 8
Finding an average (mean): Sept. 27, p. 2; Sept. 27, p. 10; Oct. 18, p. 10; Oct. 18, p. 14; Dec. 13, p. 10; Jan. 31, p. 2; Feb. 21, p. 2
Geometric progression: Nov. 8/22, p. 2
Greatest common factor: Nov. 8/22, back page; Dec. 13, back page; Jan. 10, p. 8
Irrational numbers: Jan. 31; p. 8
Least common multiple: Dec. 13, p. 14; Jan. 10, p. 2; Jan. 10, p. 8; May 2, p. 8
Multiples: Sept. 6, cover; Sept. 6, p. 2; Sept. 27, back page; Dec. 13, p. 14; Jan. 10, p. 8; May 2, p. 8
Negative numbers: Jan. 31; p. 4; Apr. 11, back page; May 2, p. 8
Number line: Oct. 18, p. 12
Prime numbers: Oct. 18, cover; Oct. 18, back page; Jan. 10, p. 8; May 2, p. 8
Prime factorization: Jan. 10, p. 8
Twin primes: Oct. 18, cover; May 2, p. 8

DECIMALS & MONEY
Decimal computation: Sept. 27, p. 4; Sept. 27, p. 14; Oct. 18, p. 10; Jan. 10, p. 10; Jan. 31, p. 8; Jan. 31, p. 10; Jan. 31, p. 12; Feb. 21, p. 2; Feb. 21, p. 6; Mar. 14, p. 6; Apr. 11, p. 4; Apr. 11, p. 10; May 2, p. 8; May 2, p. 10
Decimal place value: Sept. 6, p. 14
Money computation: Sept. 6, p. 2; Sept. 6, p. 4; Sept. 6, p. 6; Oct. 18, p. 2; Nov. 8/22, p. 4; Nov. 8/22, p. 14; Jan. 10, p. 4; Jan. 10, p. 8; Jan. 10, p. 12; Jan. 31, p. 2; Jan. 31, p. 8; Feb. 21, p. 2; Feb. 21, p. 4; Mar. 14; p. 2; Mar. 14, p. 8; May 2, p. 2; May 2; p. 4; May 2, p. 8
Ordering decimals: Oct. 18, p. 10; Nov. 8/22, p. 12
Rounding decimals: Sept. 6, p. 4; Sept. 6, p. 12; Sept. 6, p. 14; Sept. 27, p. 10; Oct. 18, p. 6; Nov. 8/22, p. 12; Nov. 8/22, p. 14; Dec. 13, p. 10; Jan. 31, p. 10; Apr. 11, p. 12; May 2, p. 6; May 2, p. 8; May 2, p. 10; May 2, p. 12
Writing decimals as fractions: Nov. 8/22, p. 20
Writing decimals as percents: Feb. 21, p. 6; May 2, p. 6
Writing fractions as decimals: Nov. 8/22, p. 20; May 2, p. 8

FRACTIONS
Cross-multiplication: Feb. 21, back page
Conceptualizing fractions: Nov. 8/22, cover; Nov. 8/22, p. 6; Dec. 13, cover; Apr. 11, p. 10
Fraction computation: Dec. 13, p. 4; Dec 13, p. 8; Dec. 13, p. 12; Jan. 10, p. 8; Jan. 31, p. 14; Jan. 31; back page; May 2, p. 8; May. 2, p. 14
Least common denominator: Dec. 13, p. 8
Mixed number addition and subtraction: Jan. 31; back page
Reciprocals: Jan. 10, back page; Jan. 31, p. 14
Simplest form (lowest terms): Dec. 13, cover; Dec. 13, p. 4; Dec. 13, p. 12; Dec. 13, back page; Jan. 10, p. 8; Jan. 10, back page; Jan. 31, p. 2; Jan. 31, p. 14; Jan. 31, back page; May. 2, p. 14
Unit fractions: Nov. 8/22, cover
Writing decimals as fractions: Nov. 8/22, p. 20
Writing fractions as decimals: Nov. 8/22, p. 20; Apr. 11, p. 14; May 2, p. 8
Writing fractions as percents: Mar. 14, back page
Writing improper fractions as mixed numbers: Dec. 13, p. 12; Jan. 10, back page; Jan. 31, p. 14
Writing mixed numbers as improper fractions: Dec. 13, p. 12; Jan. 10, back page; Jan. 31, p. 14; May 2, p. 8

RATIO & RATE, PROPORTION, PERCENT
Calculating a percent: Mar. 14, p. 4
Conceptualizing ratios: Feb. 21, back page; May 2, p. 10; May 2, p. 14
Equivalent ratios: Feb. 21, back page
Percent change: Apr. 11, p. 2; Apr. 11, p. 12; May 2, p. 2; May 2, p. 10
Percent of a number: Oct. 18, p. 2; Jan. 10, p. 4; Feb. 21, p. 8; Apr. 11, p. 4; Apr. 11, p. 8; Apr. 11, p. 10; May 2, p. 2; May 2, p. 8; May 2, p. 10; May 2, p. 12
Percent off: Mar. 14, p. 2; May 2, p. 8
Proportions (writing and solving): Apr. 11, p. 8; May 2, p. 2; May 2, p. 8
Rate: Sept. 6, p. 8; Sept. 6, p. 12; Sept. 27, p. 10; Nov. 8/22, p. 16; Jan. 10, cover; Jan. 10, p. 2; Jan. 10, p. 8; Jan. 31, p. 8; Apr. 11, p. 2, Apr. 11, p. 10; May 2, p. 8
Writing decimals as percents: Feb. 21, p. 6
Writing fractions as percents: Mar. 14, back page
Writing percents as fractions: Apr. 11, p. 8

MEASUREMENT AND GEOMETRY
Angle measures: Jan. 10, p. 14
Area of a circle: Mar. 14, p. 6
Area of a rectangle: Jan. 31, p. 12; Apr. 11, p. 8; May 2, p. 8
Area of a triangle: Dec. 13, p. 12; Jan. 31, p. 12; May 2, p. 8
Circumference of a circle: Mar. 14, p. 6; Apr. 11, cover; May 2, p. 8
Classifying angles: Jan. 10, p. 14; May 2, p. 8
Coordinate grids: Mar. 14, p. 12
Customary measures: adding pounds and ounces: Feb. 21, p. 12
Degrees in a circle: May 2, p. 6
Elapsed time: Dec. 13, p. 2; Apr. 11, p. 2; May 2, p. 8; May 2, p. 12
Equivalent measures: Sept. 27, p. 10; Nov. 8/22, p. 2; Dec. 13, cover; Jan. 10, p. 2; Jan. 10, p. 8; Jan. 31, p. 2; Feb. 21, p. 2; Apr. 11, p. 2; Apr. 11, p. 4; Apr. 11, p. 8; May 2, p. 8
Interior angles of a polygon: Feb. 21, p. 14; May 2, p. 8
Metric measures: Nov. 8/22, p. 2; Feb. 21, p. 2; Apr. 11, p. 2
Ordered pairs: Mar. 14, p. 12
Perimeter: Jan. 31, p. 12
Pythagorean theorem: May 2, back page
Supplementary angles: Mar. 14, cover
Temperature (Fahrenheit): Nov. 8/22, p. 10; Jan. 31, p. 4; May 2, p. 8
Time computation: Sept. 6, p. 2; Sept. 27, p. 2; Oct. 18, p. 2; Oct. 18, p. 4; Nov. 8/22, p. 2; Dec. 13, p. 2; May 2, p. 2
Units of energy: Apr. 11, p. 10
Using a ruler/tape measure (fractions of inches): Dec. 13, p. 4

GRAPHS & STATISTICS
Bar graph (reading): Sept. 6, p. 6; Oct. 18, p. 2; Mar. 14, p. 2
Bar graph (making): Oct. 18, p. 6
Box-and-whisker plot (making): Dec. 13, p. 6
Circle graph (reading): Feb. 21, p. 8
Circle graph (making): May 2, p. 6
Completing a chart: Nov. 8/22, p. 12; Feb. 21, p. 12; Apr. 11, p. 4
Double-line graph (reading): Apr. 11, p. 6
Finding an average (mean): Sept. 27, p. 2; Sept. 27, p. 10; Oct. 18, p. 10; Oct. 18, p. 14; Dec. 13, p. 10; Jan. 31; p. 2; Feb. 21, p. 2; Mar. 14, p. 15; May 2, p. 8
Line graph (reading): Sept. 27, p. 8
Line graph (completing): Nov. 8/22, p. 6
Median: Dec. 13, p. 6; Jan. 31, p. 2; Mar. 14, p. 15; May 2, p. 8
Mode: Mar. 14, p. 15
Probability: May 2, p. 14
Range: Dec. 13, p. 6; May 2, p. 8
Reading a chart: Sept. 6, p. 4; Sept. 27, p. 4; Nov. 8/22, p. 4, Nov. 8/22, p. 12; Jan. 10, p. 4; Jan. 10, p. 12; Jan. 31, p. 4; Feb. 21, p. 4; Mar. 14, p. 4; Mar. 14, p. 8; May 2, p. 12
Reading a map: Oct. 18, p. 4
Stacked bar graph (reading): Jan. 31, p. 6

PROBLEM SOLVING
Attributes: Oct. 18, p. 8
Guess and check: Jan. 31, p. 8; Feb. 21, p. 10
Logic: Nov. 8/22, p. 23; Jan. 31, p. 8; Feb. 21, p. 10
Logic lines: Sept. 27, p. 6
Multi-step problems: Oct. 18, p. 10; Nov. 8/22, p. 12; Nov. 8/22, p. 18; Jan. 10, cover; Jan. 10, p. 10
Patterns: Oct. 18, p. 8; Nov. 8/22, p. 2; Feb. 21, p. 2; May 2, cover; May 2, p. 8
Working backward: Oct. 18, p. 14

PRE-ALGEBRA
Equations (writing): Nov. 8/22, p. 8; Nov. 8/22, p. 18; Feb. 21, p. 10; Mar. 14, p. 10; May 2, p. 4
Exponents: Oct. 18, p. 12; Jan. 31, cover; Mar. 14, p. 2; Apr. 11, p. 14; May 2, p. 8; May 2, back page
Exponents less than or equal to 0: Apr. 11, p. 14; May 2, p. 8
Expressions (evaluating): Sept. 6, p. 12; Nov. 8/22, p. 10; Nov. 8/22, p. 18; Jan. 31, cover; May 2, p. 8
Formulas: Nov. 8/22, p. 10; Jan. 10, p. 8; Jan. 31, p. 10; Jan. 31, p. 12; Feb. 21, p. 14; Apr. 11, p. 10; May 2, p. 4; May 2, back page
Function table: Feb. 21, p. 2; Mar. 14, p. 10
Inverse operations: Sept. 6, back page
Mapping diagram: Mar. 14, p. 10
Multistep problems: Jan. 10, p. 8; Jan. 31, p. 2
Order of operations: Sept. 6, p. 2; Sept. 27, p. 2; Oct. 18, p. 2; Nov. 8/22, p. 2; Dec. 13, p. 2; Jan. 10, p. 2; Jan. 31, p. 2; Feb. 21, p. 2; Mar. 14, p. 2; Apr. 11, p. 2; May 2, p. 2
Polynomials: Jan. 31, cover
Powers of 10: Sept. 27, p. 12; Jan. 10, p. 6
Square roots: Jan. 31, p. 8; May 2, p. 8
Variables (solving for): Sept. 27, p. 2; Oct. 18, p. 12; Nov. 8/22, p. 8; Dec. 13, p. 2; Jan. 10, p. 8; May 2, p. 8
Variables (both sides of an equation): Nov. 8/22, p. 18; May 2, p. 8

TEST-TAKING PRACTICE
Area and perimeter (rectangles/triangles): Jan. 31, p. 12
Equations with variables on both sides: Nov. 8/22, p. 18
Exponents: Oct. 18, p. 12
Factors: Sept. 6, p. 10
Functions: Mar. 14, p. 10
Multiplying fractions: Dec. 13, p. 12
Percent change: Apr. 11, p. 12

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