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AmBrSoft Calculators. Lines Analitical Equations. Math Central - Welcome! Exploring Parabolas:  y = ax^2 + bx + c. Mrs. Atwood's Math Class. Simplifying Radicals: Solving Systems of Equations: Foldable Booklets. *Update* (1/2/14) - Some people are having difficulties with the download below. Try this one instead. What you see here are little booklets with tabs. One each for solving systems by graphing, substitution, and elimination. No staples or glue required to make these. From Wolfram MathWorld. Cone Construction Calculator. A cone is constructed by taking a circle sector of radius L and angle θ and joining the two straight edges together. And any cone without a closed base can be formed back into a circle sector by cutting a straight line from the nape to the base and flattening the resulting figure. If you are given L and θ, you can plug these values into equations to find the height (H) and base radius (R) of the corresponding cone. Likewise, if you are given H and R, you can plug these values into equations to find L and θ. What is the formula for the length of an arc? Arc Length. S= r θ Formula and Equation for the central angle in radian measure. There is a formula that relates the arc length of a circle of radius, r, to the central angle , in radians. Formula for The picture below illustrates the relationship between the radius, and the central angle in radians. The formula is where s represents the arc length, represents the central angle in radians and r is the length of the radius. Toomey.org Tutoring Resources. This Web page contains reference materials for my WyzAnt students. My name is Harold and I have tutored hundreds of students in math, science and engineering over the past 25 years. I worked in the BYU Math Lab to pay my way through college where I earned a Master of Science degree in Electrical and Computer Engineering with a minor in mathematics. I have even published a book and software package used by several universities on numerical analysis with the C programming language. I tutor all levels of math, from prealgebra through calculus 3 and beyond. Online tools - maths online. One of many scientific calculators on the web. It accepts brackets, functions like sin, cos, tan, exp, log, sqrt, pow, asin, acos, atan, gamma, the constants E und PI. Make your own Graphs. Equations. Printables - Math Concentration. Area and Volume. By Keith Enevoldsen Have you memorized some of the area and volume formulas, like A = πr2, without understanding the explanation for the formulas? This is an attempt to explain all the basic area and volume formulas as simply and intuitively as possible, starting with the easy ones and building up to the more difficult formulas for the area and volume of a sphere. Areas of Plane Figures. Exponents and Radicals in Algebra - She Loves Math. This section covers: We briefly talked about exponents in the Powers, Exponents, and Radicals section, but we need to go a little bit further in depth and talk about how to do algebra with them. Note that we’ll see more radicals in the Solving Radical Equations and Inequalities section, and we’ll talk about Factoring with Exponents, and Exponential Functions in the Exponential Functions section. Remember that exponents, or “raising” a number to a power, are just the number of times that the number (called the base) is multiplied by itself. Radicals (which comes from the word “root” and means the same thing) means undoing the exponents, or finding out what numbers multiplied by themselves comes up with the number. Thoughts on Transformations in Math Education. This was my go-to review activity. I picked it up at an un-unconference as a student teacher. First, have students get in groups of four. Algebra: Themes, Tools, Concepts. Grade 12 math practice. Steps Into Algebra Mind Map by Learning Enhancement Team on Prezi. Early math. Clemens Math Page. Pauls Online Math Notes. Cheat Sheets and Tables Here is list of cheat sheets and tables that I've written. Most of these are pdf files and so you will need the Adobe Viewer to view them. You can download the latest version here. Algebra Cheat Sheet - [pdf] - This is as many common algebra facts, properties, formulas, and functions that I could think of. There is also a page of common algebra errors included. The Teacher Garden: Math Word Problem Strategies. If you don't already know, I started my own tutoring business this year when I realized I wasn't going to get to teach every day. (Substituting is a wonderful opportunity and allows me to glean so many ideas, but I simply cannot expect to get a sub job every day!) About 80% of my students receive my tutoring services in math. I saw this phenomenon when I was student teaching in 2nd grade, but it has really stuck out as I have tutored my students in math this year: word problems are a stumbling block for many, many students. There is just something about combining letters with what kids have traditionally known as an "all-number subject" that freaks them out (algebra, anyone?). I have seen a few school districts use a couple of techniques in particular to help students combat this word-problem fear. The first is called the C.U.B.E. method:

Bradshaw-Handouts. Math Scene - Functions 2 - Lesson 6 - Inverse functions. Lesson 6 Inverse functions We have already seen some functions that are the inverse of each other. The functions f(x) = x2 and g(x) = √x are the inverse of each other if we limit the x values to non - negative numbers. Pre-calculus OLD, 2nd Quarter. Another thing we want to do with the rational functions is to apply the transformations we learned in Unit 04. We just applied these to the polynomials, so they should be fairly fresh in your mind. But just as a reminder. y = ƒ(x) scales the entire function by a constant. . | > 1 the polynomial became stretched. Constructing a best fit line.