Welcome to Month 5 of the Bella Skill Builder, sponsored by the Fat Quarter Shop. This month's skill-building technique consists of two blocks made from half square triangles.
You can find all the information for the Bella Skill Builder Month 5, including videos and a list of other quilters participating, on the Jolly Jabber blog.
Even though it's Month 5, it's still not too late to start the Skill Builder. Find all the information here.
Also, if you want to try Triangles on a Roll, they can be found (in multiple sizes) in the Fat Quarter Shop notions section. Happy skill building. :)