Hello! Welcome to Couch Surfer Crochet! We are now on Week 6 of the 2019 Block-A-Week Project! You can find the first few weeks here:
Block-A-Week 2019 – Squares
(all of the weeks are posted there)
The pattern for Week 6 will look like this as you work each row:

This pattern is the basic Block Stitch, repeated until it reaches 12″ in size. It is a simple, but very striking pattern. It works up very quickly!
You can download a written pattern for the Block Stitch right here on Ravelry.
Written Pattern for the Block Stitch Square:
Round 1: Ch 3, working into the first chain make 2 dc, *ch 2, make 3 dc* repeat between * 2 more times, ch 2, sl st to join in top of beginning chain, fasten off (12 dc, 4 ch-2 spaces)
Round 2: Join new color in corner ch-2 space – Ch 4 (counts as sc and ch-3), make 1 sc in same space, *ch 3, in next ch-2 space make [sc ch 3, sc]* repeat between * 2 more times, ch 3, sl st to join in first beginning chain, fasten off (8 sc, 8 ch-3 spaces)
Round 3: Join new color in corner ch-3 space – Ch 2, in same space make [2 dc, ch 2, 3 dc], in next ch-3 space make 3 dc, *in next corner ch-3 space make [3 dc, ch 2, 3 dc], in next ch-3 space make 3 dc* repeat between * to end, join in top of beginning ch-2, fasten off (36 dc, 4 ch-2 spaces)
Round 4: Join new color in corner ch-2 space – Ch 4 (counts as sc and ch-3), make 1 sc in same space, *ch 3, sc in the space between each set of 3 dc sts* repeat between * to next corner, **in corner ch-2 space make [sc, ch 3, sc], [ch 3, sc in the space between each set of 3 dc sts] to next corner** repeat between ** to end, join, fasten off (16 sc, 16 ch-3 spaces)
Round 5: Join new color in corner ch-3 space – Ch 2, in same space make [2 dc, ch 2, 3 dc], *in next ch-3 space make 3 dc* repeat between * to next corner, **in corner ch-3 space space make [3 dc, ch 2, 3 dc], make 3 dc in each ch-3 space to next corner** repeat between ** to end, join, fasten off (60 dc, 4 ch-2 spaces)
Round 6-13: Repeat Rounds 4 & 5 four more times
To complete the square with a solid edge, I did ONE ROUND of single crochet.
Round 14: Starting in corner, ch 3 (counts as sc and ch 2, sc in same st, * sc in each st across, (sc, ch 2, sc) in corner, repeat from * around, fasten off
Weave in all ends.
Check out the video tutorial to learn how to crochet the block stitch in the round.