# algebra

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Algebra is one of the basic building blocks to learning mathematics at a higher level.

According to Answers.com, the primary definition of algebra is "A branch of mathematics in which symbols, usually letters of the alphabet, represent numbers or members of a specified set and are used to represent quantities and to express general relationships that hold for all members of the set." Within algebra, there are several categories within the discipline, including elementary algebra, abstract algebra, linear algebra, universal algebra, algebraic number theory, algebraic geometry, and algebraic combinatorics.

There are many resources available online that can help people of all ages learn algebra. These include Algebra.com, Algebra.help, and Gamequarium's Math Games.

Look up "algebra" at The Free Dictionary

## Latest blogosphere posts tagged “algebra”

• ### My Math Deficiency

Weary Productions Authority: 109
Slate.com recently published this great article on the terrible state of math education in this country. It’s a critique of a New York Times article that suggests we can improve math grades by trying to convince students it is not a boring subject, because it is used in other disciplines such as computer ...
1 week ago
• ### Math Review of Absolute Value

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Overview: Number sentences involving absolute value refer to a number’s distance from zero.  Absolute value has a number of applications, including measurements and tolerances.  It is important to read problems carefully that involve absolute value. What is Absolute Value? The mathematical definition of ...
1 week ago
• ### Ratios and Proportions

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Overview: Ratios and proportions are common ways to compare numbers.  They have many mathematical applications, such as scale models, percentages, and interest.  Ratios and proportions can be set up with variables, and solved for those variables. What Is a Ratio? A ratio is a comparison of two numbers by ...
1 week ago
• ### What is a coset?a shifted subgrouplike −5, −2, 1, 4, 7, 10see...

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What is a coset? a shifted subgroup like −5, −2, 1, 4, 7, 10 see also: abstract harmonic analysis
1 week ago
• ### Bad repairmen and US educational policy

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- both continually change things without fixing them. – both continually change things without figuring out what the effects of the previous changes were. – and both might make things better one day, might make them worse another day, but are bad for everyone in the long run. I know math best. In my 17 years in ...
1 week ago
• ### Remedial remake

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High failure rates in remedial math have prompted Illinois community college teachers to develop “math literacy” courses for students in non-STEM majors. A remedial revolution will hit Florida next fall: Most state college students will not be required to take remedial courses, regardless of their college ...
1 week ago
• ### ‘Math literacy’ or remedial algebra?

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Remedial math is getting an overhaul at community colleges, reports the Chicago Tribune . Algebra-heavy courses are giving way to “math literacy.” Unlike a lot of people her age, 20-year-old Kelsey Pearsall-Brandon of Lake in the Hills has a clear career goal. She wants to be a police officer. But something ...
1 week ago
• ### Academic Earth: Curated Listings of University Video Courses

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Academic Earth is a curated collection of some of the best free online academic courses and lectures from world-class teachers and experts. This is a tour of Academic Earth’s: Online course listings Participating Universities Curated Playlists Custom-produced “Elective” videos Enjoy! Video tour of ...
1 week ago
• ### Matrices have broad ramifications in computer science

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Among the most common tools in electrical engineering and computer science are rectangular grids of numbers known as matrices. The numbers in a matrix can represent data, and they can also represent...
1 week ago
• ### homework (Misc)

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Purchase \$5.00 young female student doing her homework
1 week ago
• ### The square root of x+1 equals x+1... A Common Core Investigation

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OVERVIEW Fairly straightforward radical equation in the title but there is so much hidden potential here for students in Alg 2/Precalculus. REFLECTIONS • The solutions to the equation above are -1 and 0. No big deal, right? The usual algorithm --- just square both sides and solve the resulting quadratic by any ...
2 weeks ago
• ### Math problems of the week: 1900s algebra vs. Chicago Math algebra

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The totality of rational expression addition and subtraction problems in Wentworths New School Algebra (published in 1898)  vs. the University of Chicago School Mathematics Project Algebra (published in 2002) . I. From Wentworths New School Algebra , pp. 133, 134, 135, 137 [click to enlarge]: ...
2 weeks ago
• ### Buy Educational Insights Middle School: Pre – Algebra and Algebra (Pre – Programmed Classroom Jeopardy Cartridge)

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Educational Insights Middle School: Pre – Algebra and Algebra (Pre – Programmed Classroom Jeopardy Cartridge).Smart deals and top shopping.Top Shop on Educational Insights Middle School: Pre – Algebra and Algebra (Pre – Programmed Classroom Jeopardy Cartridge) now. Cheap Price Now! … Continue reading →
2 weeks ago
• ### Why I Am Cheap Entertainment...*

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...compared to cable, casinos, concerts, and circuses**. I think the best way to demonstrate this is by mathematical equation: If x = quality, professional entertainment at a premium price and y = me: cheap, unsophisticated, requiring only a few clicks entertainment then z = well, you can clearly see below. ...
2 weeks ago
• ### Be an Agent of Change

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“The world as we have created it is a process of our thinking. It cannot be changed without changing our thinking.”― Albert Einstein   The only way we can change our child’s future is by changing the way how Algebra is perceived. I have been doing a lot of research on this problem and have realized that ...
2 weeks ago
• ### AR in Algebra One Slope Lesson

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Have your students scan this AR trigger with the APP LAYAR to go to a screencast where I ask them to make their thinking visible about the slope intercept concept.
2 weeks ago
• ### Math Review of the Triangle Inequality

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Overview: Triangles have many different properties.  For example, the sum of all three angles is always equal to 180 o . The area of a triangle is equal to 1/2 times the base times the height.  The triangle inequality property is another property that can be used in real-world situations. Straight Lines and ...
2 weeks ago
• ### Guest Post: Supporting Older Students Who Struggle with Maths

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Guest Post: Supporting Older Students Who Struggle with Maths Often as teachers we struggle to support those students for whom maths is challenging. As a teacher myself, I found many of these students experienced difficulties which continued from their primary years right through until adulthood. Working with these ...
2 weeks ago