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You can either create a template using graph paper or find a free template online. You can use as many different patterns/colors of fabric as you like to make your quilt. Use a rotary cutter and a self-healing mat to achieve squares as precise as possible. Use a sewing machine to sew the squares into your desired pattern. Sew the three layers together with a simple stitch in each corner of the quilt. You will remove this stitch later. Fusible batting needs to be ironed to the other two layers, but regular batting does not. Follow the seams in the quilt block and keep a 1/4-inch seam allowance between your stitching and the seam. You should be able to easily cut out the stitches using scissors. Sew long strips of fabric to the outside border of the quilt to create a more complex, polished pattern.
Choose your template and your fabric. Transfer your template to your fabric and cut out the squares. Sew each square together leaving a 1/4-inch seam allowance. Baste the quilted squares, batting, and backing together. Sew the quilt together starting from the middle and working out. Remove the temporary stitches that you used to hold together the three layers. Add borders to the quilt if you want them.