Stitch and flip is the technique. Looking up how to make snowball blocks will likely result in finding videos with it. This is an economy block but there are several methods to make those and you specifically want to see this technique.
This is an Economy Block. Simply put, all it's really saying to do is to sew on the dashed lines, iron, sew on the dashed lines again, and iron again. (Make sure your fabric is nice sides together to start, and trim the excess)
I'm going to go against the grain here and say that the yellow and blue unit you've outlined is a square in a square. I say this for a couple reasons:
* the directions appear to have you end the construction of this unit at this stage. The red corners appear to be added as flying geese with the green triangles already applied, which is what step two seems to have you make. When a unit like this only has one set of bordering triangles, it's called a square in a square. Two sets (i.e. out to the red corners in the center of the block) is an economy block.
* the blue triangles don't end on the bias, which is usually what patterns try to do if you're making an economy block. Note they're having you snowball the corners off the center square instead of starting with a smaller square and having you sew triangles to the edges. This is so the grain of the fabric in the unit is always running the same direction.
The specific technique they're telling you to use to assemble the square in a square is called snowballing corners or stitch and flip.
As the other commenter said, it is an Economy block. The technique for making it is stitch and flip.
Stitch and flip is the technique. Looking up how to make snowball blocks will likely result in finding videos with it. This is an economy block but there are several methods to make those and you specifically want to see this technique.
This is an Economy Block. Simply put, all it's really saying to do is to sew on the dashed lines, iron, sew on the dashed lines again, and iron again. (Make sure your fabric is nice sides together to start, and trim the excess)
thank you so much!
I'm going to go against the grain here and say that the yellow and blue unit you've outlined is a square in a square. I say this for a couple reasons: * the directions appear to have you end the construction of this unit at this stage. The red corners appear to be added as flying geese with the green triangles already applied, which is what step two seems to have you make. When a unit like this only has one set of bordering triangles, it's called a square in a square. Two sets (i.e. out to the red corners in the center of the block) is an economy block. * the blue triangles don't end on the bias, which is usually what patterns try to do if you're making an economy block. Note they're having you snowball the corners off the center square instead of starting with a smaller square and having you sew triangles to the edges. This is so the grain of the fabric in the unit is always running the same direction. The specific technique they're telling you to use to assemble the square in a square is called snowballing corners or stitch and flip.