Stitches (US terms):
Slip Stitch (ss)
Chain (ch)
Single Crochet (sc)
Double Crochet (dc)
Half Double Crochet (hdc)
Make a magic circle (as shown on the pic's) or chain 3 and join with a slip stitch.
Round 1: Ch 2, 11 dc into the circle, join with ss. You have a total of 12 stitches.
Round 2: Change color. Start in a space between 2 stitches. Ch 2, 1 dc into the same space. *Into the next space 2 dc*, repeat *to* 10 times, join with a ss.
Round 3: Change color. Start in a space between 2 2dc's from the previous round. Ch 2, 2 dc into the same space. Into the next space, *3 dc*, repeat *to* 10 times, join with ss.
Round 4: |Change color. Start in a space between 2 3 dc's from the previous round. Ch 4, *sc into a space between 2 3dc's from the previous round, ch 3*. Repeat *to* 10 times. Ch 2, join with a ss. Ss around the ch 3 from the previous round (see pic's).
Round 5: Ch 2, 2 dc, ch3, 3dc (first corner). *3 hdc around the next ch 3, 3 hdc around the next ch 3, 3 dc, ch 3, 3dc round the next ch3*. Repeat *to* 2 times. 3hdc around the next ch 3, 3 hdc around the next ch 3, ch 1#, join with ss. (# optional)
Round 6: Change color. Use the usual granny square method to make the square bigger if you like (3 dc in each in between space and 3 dc, ch 3, 3 dc into each corner).
These are the brands and colors I used:
White: Catania (Schachenmayr) nr. 0105
Blue: Catania (Schachenmayr) nr. 0385
Pink: Rio (Lammy) nr. 710
Salmon: Rio (Lammy) nr. 214
Yellow: Phildar (Phil Coton 3) nr. 0063
I used the join-as-you-go method to join the squares, (nice and easy) and around the joined squares I always do a round of half double crochet grannies, 'cause it fits better than double crochet (try it, it's true).
Happy hookin'!