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Cost
$ $ $ $ $
Difficulty
• • • •
Time
40 mins

A project for science and math lovers!
I designed this block last year for National Pi Day. :) Because who doesn't know someone in their life that loves math or science. Now that math or science-y person can have a tote bag or zip pouch or anything else made with this quilt block designed just for them! :)

Posted by Kelli Fannin Quilt Designs from Stockton, California, United States • Published See Kelli Fannin Quilt Designs's 7 projects »
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  • How to make a patchwork quilt. Pi Quilt Block - Step 1
    Step 1

    Cutting Instructions:

    From Dark Blue (or color of choice):
    (1) 2 1/2 x 7 1/2"
    (1) 2 1/2 x 2 1/2"
    (1) 2 3/8 x 2 3/8"
    (1) 2 x 6 1/2"
    (1) 2 x 6"
    (1) 2 x 2"
    (4) 1 7/8 x 1 7/8"
    (1) 1 1/2 x 3 1/2"
    (1) 1 1/2 x 2 1/2"
    (1) 1 1/2 x 1 1/2"

    From Background:
    (1) 2 1/2 x 2 1/2"
    (1) 2 3/8 x 2 3/8"
    (1) 2 x 12 1/2"
    (1) 1 1/2 x 12 1/2"
    (2) 1 1/2 x 8"
    (2) 1 1/2 x 2 1/2"
    (1) 4 1/2 x 6"
    (1) 3 1/2 x 4 1/2"
    (1) 2 1/2 x 3"
    (1) 1 1/2 x 1 1/2"
    (4) 1 7/8 x 1 7/8"

  • How to make a patchwork quilt. Pi Quilt Block - Step 2
    Step 2

    Place a 2 1/2" square of background and Pi fabric right sides together. Stitch from corner to corner diagonally. Trim, flip and press open. You should have a 2 1/2" (unfinished; 2" finished) HST or Half Square Triangle. Set aside.

  • How to make a patchwork quilt. Pi Quilt Block - Step 3
    Step 3

    Place a 2 3/8" square of background and Pi fabric right sides together. Trace a line diagonally from corner to corner. Stitch a scant quarter inch seam on each side of traced line. There's a "scant quarter inch seam" tutorial on my blog. Cut apart on traced line. Press open your TWO 2" (unfinished; 1 1/2" finished) HSTs.

    Using the same method, but using 1 7/8" squares of background and Pi fabric, make TWO 1 1/2" (unfinished; 1" finished) HSTs. Repeat with each set of 1 7/8" squares, until you have 8 total 1 1/2" HSTs. (You will have one spare.)

  • How to make a patchwork quilt. Pi Quilt Block - Step 4
    Step 4

    Assemble as per the diagram. And enjoy your piece of Pi. :) Your block should be 12 1/2" unfinished (12" finished).

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