The average elementary school student in the United States spends roughly six hours per week learning math in the classroom — more than 200 hours a year — but only about 40 percent of fourth-graders test at a “proficient” level or higher in age-appropriate mathematical principles. It’s become common for students to seek outside-the-classroom help from peers and, increasingly, from the always-on resources of the internet. Here are some of the best sites to visit when looking for free math help online.
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Free Elementary Math Help
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Khan Academy: place value, measurement and data, counting, addition and subtraction
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MathPickle: logic, factoring, patterns, skip counting, percentages, composite divisors
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Hooda Math: word problems, basic operations, rounding, equivalent fractions
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Arcademics: counting, integers, money, time, decimals, ratio and proportions
Free Pre-Algebra Help
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Khan Academy: factors and multiples, negative numbers and coordinate planes, equations, expressions, inequalities
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Coolmath.com: primes, order of operations, fractions, decimals, exponents, properties
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Hooda Math: unit rates, explaining points on a graph, proportional relationships, rational numbers
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Math Goodies: order of operations, exponents, integers, writing algebraic expressions and equations
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Math Planet: inequalities, one-step equations, integers, fractions and factors, ratios and percent
Free Algebra Help
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Patrick JMT: fractions using inequalities, radical notations, rationalizing the denominator, factoring, solving linear equations
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Coolmath.com: exponents, radicals, polynomials, factoring polynomials, division of polynomials
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Math Planet: graph functions, matrices, polynomial functions, exponential and logarithmic functions
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FreeMathHelp.com: absolute values, direct variations, distributive properties, dividing by zero
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Khan Academy: variables, substitutions, evaluating expressions, dependent and independent variables
Free Geometry Help
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Khan Academy: transformations, congruence, similarity, analytic geometry, circles
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Brightstorm: postulate, axiom, conjecture, rays, vertex and diagonals, angle bisectors
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Math Planet: measure line segments, polygons, angles, parallel lines, transversals, proofs
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Hooda Math: subtracting linear expressions, proofs, pythagorean theorem
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FreeMathHelp.com: asymptotes, domain and range, point slope forms, slope of a line
Free Trigonometry Help
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Patrick JMT: unit circle, complementary and supplementary angles, simplifying expressions, Heron’s formula
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Khan Academy: trigonometry with right triangles, unit circle, sine, cosine, tangent, graphs of trigonometric functions
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Brightstorm: Pythagorean Theorem, radian measure of angles, sine and cosine waves, the tangent function, trigonometric identities
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FreeMathHelp.com: derivatives of trig functions, double/half angle formulas, magic identities, measuring and angle
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OnlineMathLearning.com: trigonometry word problems, secant, cosecant, cotangent, inverse trigonometry, degrees and radians
Free Precalculus Help
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Khan Academy: conic sections, vectors, matrices, complex numbers, probability and combinatorics, series
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Coolmath.com: slopes of lines, tangent lines, shifting, reflecting, piecewise functions, absolute values
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Brightstorm: conic sections, sequences and series, equations of lines, parabolas, circles, polynomial and rational functions
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OnlineMathLearning.com: parallel lines, skew lines, planes, parent functions, reflective transformations, power functions
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Patrick JMT: parabolas, piecewise functions, point-slope form, polynomials, linear functions
Free Calculus Help
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Brightstorm: limits and continuity, derivatives, differentiation, antiderivatives, differential equations
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Patrick JMT: calculating a limit, continuity, intermediate value theorem, derivatives, centroids
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FreeMathHelp.com: chain rule, inverse functions, log and exponentials, differential equations, implicit functions
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Khan Academy: existence theorems, accumulation and Riemann sums, derivatives, antiderivatives, definite integrals
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OnlineMathLearning.com: quotient rule, chain rule, product rule, derivatives, exponential function, limits and continuous functions
Free Statistics Help
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Patrick JMT: calculating probabilities, calculating variances, box and whisker plots, expected values, binomial distributions
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Khan Academy: study design, permutations, sampling distributions, confidence intervals, significance tests, advanced regression
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FreeMathHelp.com: normal distributions, mean, mode, median, probabilities
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OnlineMathLearning.com: frequency tables, tally charts and line plots, pictograms, cumulative frequency, ANOVA test, random variables
