I discovered something.
 

Sometimes math and I have "issues". But I so love to modify block patterns and reduce , increase , some kind of change. Any how you get the idea. Tonight after struggling with my latest modification, and looking for the right size scraps to make my test block... and not wanting to sacrifice some of my larger pieces.... I thought "what about using paper instead of fabric". It was a light bulb moment for me . I sewed my paper pieces just as I would have fabric, just to see if all really fit before cutting any "good fabric". I know this is simple and many have probably done this , but for me it was a discovery I will use again and just wanted to share.

Great idea! I have done similar practice pieces for garments and quilts from cheap muslin.

I do this with old interfacing material i have hanging around. works great.

Brilliant idea! Imagine using colored construction paper!

I do this. And the next time you are out in you favorite 2nd hand treasure shops keep your eyes open for rolls of fax paper they also come in handy for paper piecing

I have used paper yet instead of sewing, didn't want to dull the needle if it was still newly placed in my machine I pin side ways at the 1/4" test the size.

..............staples work good too!!!!!

Instead of dulling your needles ... just keep an old needle and use it when doing PPing.

Great idea , thanks for posting .

And I thought I was the only one doing this!! I have lots of construction paper from day care days. :)