Posts Tagged ‘bar’
Thursday, November 12th, 2009
How to Make a Histogram
Description
A detailed tutorial on how to make a histogram. Step by step tutorial including several examples on how to make a histogram for reference.
Overview
A histogram is similar to a bar chart or bar graph, only it cannot go in either direction – histograms can only have vertical bars. The main difference between them is that bar charts and bar graphs can be used to show the number of items in a category. Histograms are used between two sets of numbers, to show which numbers relate to each other. The numbers themselves each fall under their own category. This is a very common chart to see in the later levels of math, especially statistics, as they reflect statistical data.
Tags: algebra, bar, category, chart, data, difference, graph, histogram, horizontal, number, relationship, set, statistics, vertical
Posted in Algebra | No Comments »
Tuesday, November 10th, 2009
The Numerator and Denominator of a Fraction
Description
A detailed tutorial on the numerator and denominator of a fraction. Step by step tutorial including several examples of numerators and denominators for reference.
Overview
Fractions are well known in the world of mathematics. But when first starting out, you may ask yourself why the fraction appears like it does – split into two parts. You will see a fraction either written horizontal or vertical. In a horizontal fraction, the numerator is the number to the left, and the denominator is the number to the right. In the more common and proper vertical fraction, the numerator is on the top and the denominator is on the bottom. This works when there are whole equations in either the numerator and denominator as well, not just for simpler numbers. The numerator and the denominator should never be split, but algebra tricks can sometimes help to simplify them.
Tags: algebra, arithmetic, bar, denominator, equations, fraction, horizontal, number, numerator, parts, simplify, split, tricks, two, vertical
Posted in Arithmetic | No Comments »
Tuesday, November 10th, 2009
How to Make a Bar Graph
Description
A detailed tutorial on how to make bar graphs. Step by step tutorial including several examples on how to make a bar graph for reference.
Overview
A bar graph, also referred to as a bar chart as to not be confused with graphs on the coordinate plane, is a visual expression of a set of data. Bar graphs deal with the real numbers in specific data sets. Typically they are split up into more than one category. A bar is drawn on each category extending to the number associated with that category. Traditionally, bar graphs need to have a title, an assigned label to each axis, and a certain pattern to continue writing numbers in.
Tags: algebra, axis, bar, categories, category, chart, graph, label, number, pattern, set, title, visual
Posted in Algebra | No Comments »
Tuesday, November 10th, 2009
How to Make a Stem-and-Leaf Plot
Description
A detailed tutorial on how to make a stem-and-leaf plot. Step by step tutorial including several examples of how to make a stem-and-leaf plot for reference.
Overview
A stem-and-leaf plot is named for it’s resemblance to a tree branch. The bar down the middle is the branch, and the numbers on either side are the leaves on the branch. Like box-and-whisker plots, stem-and-leaf plots are used to organize statistical data. There should be one number on the left side of the bar, and that number should be the number in the ten’s place. If it is only a one digit number, that number should be zero. If it is a three digit number, then put two numbers on the left. Then you have the bar. On the right side of the bar, are all the numbers that are found in the hundred’s place, put once again in order of smallest to largest. They will all appear in the row with with the matching number in the ten’s place.
Tags: algebra, bar, hundreds, leaf, number, organize, place, plot, row, statistics, stem, stem-and-leaf, stemplot, tens
Posted in Algebra | No Comments »
Thursday, November 5th, 2009
Using Tally Marks in Equations
Description
A detailed tutorial om how to use tally marks to solve equations. Step by step tutorial including several examples of tally marks for reference.
Overview
Tally marks are a way of counting that most of us were taught about at a young age – where you count to five by drawing four vertical bars with one diagonal line across them. But tally marks can also be used to help with equations, especially ones with addition and subtraction. As a tally mark is a type of counting numeral that gives you a visual example on solving equations, they can be very useful on simple additon and subtraction problems, as it helps to prove the right answer has been found.
Tags: arithmetic, bar, bars, count, counting, diagonal, five, five-bar, gate, horizontal, lines, numbers, numerals, tally marks, vertical, visual
Posted in Arithmetic | No Comments »
