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  1. #1
    Senior Member
    Join Date
    May 2006
    Location
    Midwest
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    353

    Algebra Question

    Being cast into a situation where I have to teach Science, Social Studies, Reading, Writing and Math, I've had to teach myself math all over again (after 20 years) and think I've done a good, but not great, job.

    I have a question about teaching algebra.

    My students (convicted felons in a maximum security prison) seem to be OK when we start out with the basics of variables. For example, they are pretty good at seeing that if you give the X + 10 = 15, then x=5. However, many of them get jammed up with you show them the algebra process, you know, "isolating X" - for example.......

    X + 10 - 10 = 15 - 10
    X = 5

    How important is it for them to learn the algebra process when they already know the answer?

    CSW
    "The man who enjoys marching in line and file to
    the strains of music falls below my contempt; he received his great brain by mistake--the spinal cord would have been sufficient." - Einstein

  2. #2
    Junior Member
    Join Date
    Sep 2006
    Posts
    3
    Knowing what the correct answer is great but if the students are to move onto higher level math then they need to be able to break down the question and fully understand why x = 5. In my opinion, a good grasp of simple algebra like this example is essential.
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  3. #3
    Senior Member
    Join Date
    Feb 2002
    Posts
    2,455
    Lots of answers can be seen in problems at this level.

    I always tell my students that we practice the process with the easy problems, when we know what the answer is. Knowing the answer is a good double check.

    When the problems get more complicated and we can't easily see the answer, we know the process and can figure it out algebraically.
    [url=http://bgjackofalltrades.wordpress.com]Jack of All Trades[/url]
    [url=http://bitsygriffin-algebra.blogspot.com]Algebra 1 w/ Mrs. Griffin[/url]

  4. #4
    Junior Member
    Join Date
    Sep 2006
    Location
    Ontario, Canada
    Posts
    18
    Algebra can be such a frightening prospect for any student. I used to tell my Grade 8 students - "The work you are about to do follows on from the algebra you did in Grade 2." - Looks of astonishment and incedulity - "Yes you are moving on from questions like:
    BOX (draw a small square) + 3 = 5
    What is BOX?
    to the frighteningly difficult
    X + 3 = 5
    Solve for X
    Once students see that it's basically grade 2 work (at the early stages) then, as Bitsy says, they are more open to the idea that more complicated questions require an algebraic process rather than just plugging in an answer.

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