Tuesday, August 25, 2009
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://dev.origami.com/diagram.cfm (many examples are available here)
All links open in a new tab or window.
Friday, August 7, 2009
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.