Wednesday, March 18, 2009

Tutorial: Quadrilateral Queries

In our polygon unit we are learning about four-sided figures called


Many people were confused about why some shapes have more than one name.
Here are some tutorials to help you learn about quadrilaterals.

Tutorial #1 - What is a parallelogram?

Here is an interactive parallelogram.

Tutorial #2 - What is a rhombus?

Here is an interactive rhombus.

Tutorial #3 - What is a rectangle?

Here is an interactive rectangle.

Tutorial #4 - What is a square?

Here is an interactive square.

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Have you used our tutorials? Which one helped the most?
Please leave a comment by clicking the comment link right below this sentence.


  1. Dear Class,

    I love how everyone was keeping a good pace. This post is very useful!


  2. Dear Class,

    Thanks for your help. I used your movies for #4. It helped me know if it's statement was true!

    Great job,
    Taylor S. :-)

  3. Dear Class,

    Thanks for the quadrilateral post. It help me answer all of the questions on my homework.

    Shane J 11 :-D

  4. Dear Class,
    I love how I can rely on you to help me learn. I noticed that in my house there is a piece of plastic shaped like a rectangle. It's also a parallelogram.

    James =)

  5. Dear Rhombus Group,
    Thanks for all the help. I think we made a great tutorial! Nice teamwork.

  6. Dear Class,

    I think these tutorials are very useful! I can't wait to film the square tomorrow.

    You are all becoming very good public speakers!

    Great job!
    Mrs. Yollis

  7. Dear Class,
    On my homework I noticed something that looked wrong in one of the tables about the rhombus. The characteristics of a rhombus are four equal sides and no right angles. On our class movie about the rhombus, it states that a square is also a rhombus. I looked further in a dictionary and discovered a rhombus is an oblique- angled equilateral parallelogram; any equilateral parallelogram except a square. The square is only considered a rhombus in special cases.

  8. Dear Class,

    Wow! What a great job you all did! I hope that the square post is going to be on the blog soon. I love that Kyle used his hands to show that the lines were parallel.
    I loved all of them. It helped me solve some of the problems.

    Your classmate,
    Shane F. :-)

  9. Dear class,

    Thank you very much for the geometry lesson. It has been a long time since I have had to think about an equilateral parallelogram. Keep up the great work!


    Matthew's Mom

  10. Dear Matthew,
    Thank you for all of your research! You said, "The square is only considered a rhombus in special cases." I wonder what those special cases are?

    I am going to find out! (Unless you beat me to it!)

    Thank you for your hard work!
    Mrs. Yollis

  11. Dear Class,

    I loved the movie!
    It helped me do my homework.

    Taylor G.

  12. Dear Class,

    What are your favorite shapes; a rhombus, parallelogram, rectangle, or a square? Atleast one person can
    answer me.

    Yours truely,

  13. Dear Lexi,

    You asked which shape is my favorite. I love the square.

    It is my favorite quadrilateral because I like right angles. In addition, it has four lines of symmetry, and I think that is interesting. Finally, I like that when you fold it diagonally, it makes an isosceles right triangle.

    Thanks for asking! I hope other readers will reply.

    Which is your favorite quadrilateral?

    Mrs. Yollis

  14. Dear Class,
    Thanks, now I know what a parallelogram, a rhombus, a square, and a rectangle is!


  15. Dear Lexi,

    My favorite shape is a rectangle, because it has 4 right angles.

    What is your favorite shape?

    Taylor S. :D

  16. Dear Mrs. Yollis,

    I love how you found that square! Was it hard looking all over the internet for it?

    :D Thanks,
    Taylor S.

  17. Dear Class,

    My favorite tutorial was about the rectangle because it reminds me of my hockey stick's blade which is kind of similar to a rectangle.

    Thanks for the help!


    Shane J. :D

  18. Dear class,

    Today during math homework I noticed that they asked a quadrilateral question I needed a tiny up-date on quadrilaterals because we have not done quadrilaterals in a few months.

    I used it on #3. I got stuck a little on #8 (it was about perimeter) maybe we should do a post about perimeter!

    Bethany :)


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