Final answer:
If the thread breaks while sewing, start re-stitching about three to four stitches before the break. Re-thread the needle, secure the end, and overlap with previous stitches to ensure the seam's integrity.
Step-by-step explanation:
When sewing, it's important to ensure that your stitches are secure. If your thread breaks, you'll need to re-stitch to maintain the integrity of the seam. A good rule of thumb is to go back about three to four stitches before where the break occurred when you begin re-stitching. This overlap ensures that there are no weak spots in the sewing that could lead to further unraveling.
Begin by re-threading your needle and securing the end of the new thread. Then, insert the needle into the fabric from the underside about 1/2 inch to 3/4 inch (or approximately 1 to 2 centimeters) behind the last good stitch. Push the needle to the top side and continue sewing forward, overlapping with the previous stitches by a few stitches. This method will help you to continue sewing without any gaps or weaknesses in the stitches.