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.