Project #2: Origami – The Art of Paper Folding

Your second project is about origami. The details of this project can be downloaded at our Geometry website, Origami Project #2.pdf

Here are some helpful links on the origin and history of origami. You can also find illustrations and instructions on how to fold origami projects in these links.

http://library.thinkquest.org/27458/nf/origami/history.html
http://www.origamiwithrachelkatz.com/origami/origami.htm
http://www.origami.as/Info/history.php
http://www.origami-instructions.com/history-of-origami.html
http://www.origami-usa.org/
http://dev.origami.com/diagram.cfm (many examples are available here)
http://www.origami.com/folders_web.html
http://www.teach-nology.com/crafts/origami/
http://www.origamicorner.com/orre.html

http://www.associatedcontent.com/article/1511868/a_brief_history_of_origami.html?cat=4

http://origami.ousaan.com/library/historye.html
http://www.youtube.com/origamicorner

All links open in a new tab or window.

Two-Column Proofs

I have just finished checking your test papers this evening and found out that most of you have difficulty solving two-column proofs. I understand the uneasy situation you are in right now and I must tell you that you are not alone in this kind of predicament.

I have published a series of posts about two-column proofs in our Geometry website. I recommend you read them and download the available file for your review.

Remember, it's never late to learn proving theorems even after your First Periodical Test.

There is also a PowerPoint presentation, Writing a Good Proof, at Available Documents.