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Advanced Math Teacher
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Co-authored Articles (20)
How to
Round Decimals
No mathematician likes working with a long, awkward string of decimals, so they will often use a technique called "rounding" (or sometimes "estimating") to make these numbers easier to work with. Rounding a decimal is a...
How to
Round Numbers
Rounding off numbers is an important skill to learn for mathematical equations and real life problems. Although rounded numbers are less precise than non-rounded numbers, they’re easier to work with and better for visu...
How to
Find the Mode of a Set of Numbers
In statistics, the ''mode'' of a set of numbers is the '''number that appears most often in the set'''. A data set does not necessarily have to have only one mode - if two or more values are "tied" for being the most com...
How to
Calculate the Area of a Parallelogram
A parallelogram is a quadrilateral, or four-sided shape, with two sets of parallel sides. Squares, rectangles, and rhombuses are special types of parallelograms, though most people think of a "slanted" rectangle, with tw...
How to
Multiply Decimals
Multiplying decimals may look tricky, but it's quite simple if you know how to multiply whole numbers. You can multiply numbers with decimals just as you would multiply whole numbers, as long as you remember to factor in...
Finding the Factors of a Number: A Tutorial
Learn how to factor with this simple guideA number’s factors are numbers that can be multiplied together to get the original number as a product or answer. In other words, every number is the product of multiple factor...
How to
Determine the Number of Divisors of an Integer
A divisor, or factor, is a number that divides evenly into a larger integer. It is easy to determine how many divisors a small integer (such as 6) has by simply listing out all the different ways you can multiply two num...
How to
Measure an Angle Using a Protractor
A protractor is a handy tool that allows you to precisely measure the number of degrees in any angle. The typical protractor is made of clear plastic and has two sets of numbers around the edge. The numbers you use depen...
How to
Find the Perimeter of a Rectangle
The perimeter of a rectangle is the sum total length of all of its sides. A rectangle is defined as a quadrilateral, or a geometric shape with four sides. In a rectangle, both sets of opposite sides are congruent, meanin...
How to
Find the Area and Perimeter of a Rectangle
A rectangle is a plane, a quadrilateral that has 4 right angles. The sides that are parallel to each other are identical in length. If the rectangle has four equal sides, it is called a square. All squares are rectangles...
How to
Make Angles in Math Using a Protractor
Using a protractor can be tricky, especially if you are using one with two sets of numbers. If you understand the concept of acute and obtuse angles, however, learning how to use a protractor is easy. It is first necessa...
How to
Teach Place Value
Place value, or the idea that the value of a digit (0-9) depends on its position in a number, is a fundamental concept in math. Because this idea comes so easily to someone who already understands it, it can be tricky to...
How to
Figure out if Two Lines Are Parallel
Parallel lines are two lines in a plane that will never intersect (meaning they will continue on forever without ever touching). A key feature of parallel lines is that they have identical slopes.. 3 November 2023. The s...
How to
Teach Even and Odd Numbers
Odd and even numbers can be a little difficult for kids to grasp at first, so if you're trying to do it in the classroom or at home, be patient. Start by introducing the concept so the kids can start to see the pattern. ...
How to
Divide and Multiply by Negative Numbers
Negative numbers have a value of less than zero. These numbers are found when working with the numbers on the left side of the number line. Negative numbers can be added, subtracted, multiplied, and divided just like pos...
How to
Graph Points on the Coordinate Plane
In order to graph points on the coordinate plane, you have to understand the organization of the coordinate plane and know what to do with those (x, y) coordinates. If you want to know how to graph points on the coordina...
How to
Evaluate an Algebraic Expression
Evaluating an algebraic expression means to calculate the expression given a certain variable. Sometimes a problem will ask you to do this; most of the time, however, you will want to evaluate an expression to check your...
How to
Graph Polar Equations
Learn to plot and graph polar equations using radians, angles, and tablesPolar functions are functions of the form r = f(θ). While you can make some really cool graphs with them, they are really quite tricky to work wi...
How to
Solve Multivariable Linear Equations in Algebra
Multivariable linear equations are equations that have two or more unknowns (generally represented by 'x' and 'y'). There are multiple ways that you can solve these equations, including elimination and substitution.
How to
Graph Linear Equations Using the Intercepts Method
There are many ways to graph a line: plugging in points, calculating the slope and y-intercept of a line, using a graphing calculator, etc. This article will teach you how to graph a line using intercepts.