Do you have ‘math anxiety’? Just the words ‘algebra’, ‘geometry’, ‘calculus’ and ‘trigonometry’ are enough to strike fear in many hearts. But don’t despair; here are free printable algebra, trigonometry, calculus and geometry lessons and homework reference sheets. You can view these handy math reference tools and homework helpers online and print from a PDF by clicking the page.

Go to eCalc.com (click here) and scroll to the bottom of the page. There are four separate tabs to click on: one for algebra, geometry, trigonometry and calculus. Each page features several free printable charts and pages of printable online tutorials, references, explanations and study guides.

The algebra tab (click here) provides homework help for logarithms, equalities, inequalities, formulas, equations, integers, exponents, properties, radical numbers, rational numbers, absolute value, quadratic equations, parabola, ellipse, hyperbola, circle, linear function, polynomials, factoring, square root and more.

The geometry tab (click here) covers solids, spheres, cubes, triangles, angles, formula, Pythagorean Theorem, theorems, postulates, etc.

The trigonometry tab (click here) covers sines, cosines, tangents, Mollwied’s Formula and all the various trigonometry functions and identities.

The calculus tab (click here) covers integrals and substitutions.

eCalc also offers a free online scientific calculator tool to download. The download is a free trial and can be purchased later. Each of the math tabs feature clear free printable poster charts with detailed explanations and comprehensive lessons. If you need any help with your algebra, calculus, trigonometry or geometry homework, be sure to visit eCalc.com. For more math lesson plans and homework help, visit my blogs in the margin.