Triangles, and more triangles......

I taught a finishing class yesterday and there were some last minute cancellations because of sickness so I had time to do some sewing too during the class.  I took along my Thangles and strips and got all of these done.  They are for these blocks. 
Now I am scurrying to have all my samples finished for today's class.  When I started making mistakes last night I quit and left some to finish this morning.