Baby's First Play Rug

Photo above is side A.

It's time to get back to crochet.  I'm making a Play rug for a baby so that he/she can lay on it on the floor.  This is a reversible afghan and I'll call this Circle Within a Square Reversible afghan.  Here is the instructions:

Materials:
Color A medium green;
Red Heart (super saver) or your favorite yarn. 7oz, 364 yds/333m, worsted medium 4.
Color B dark green (same type of yarn)
Color C light green (same type of yarn)
Crochet hook: Boye 6/6-4.25 mm
Plastic needle

Side A (color:  medium green): Ch4, slip stitch (sl st) on first(f) ch.
R1   Ch3 *(3dc over ring, ch2).* Repeat(rep)*( )*4times(x).  Sl st on top of first dc.
R2   Ch1, *[ sc nx(next) stitch(st) up to ch2 space(sp), ch3, sc on same sp]*. Rep *[ ]* until the first ch1.
        Sl st on the first ch1.
R3   Ch1, *[sc nx st up to ch3 sp. Ch3, sc on same sp, skip (sk)1 st(chain), sc nx st up to ch3sp]*.  Rep *[
        ]* until the first ch1 sl st on the first ch1.
R4   Ch1 Sc nx st up to ch3 sp*[ch3, sc on same sp, sc nxt ch and remaining chains up to ch3 sp]* .
        Rep*[ ]* until the first ch1, sl st on the beginning (beg)ch1.
 R5   Ch1, sc nx st up to last ch before the ch3 sp.  ATTACH SIDE B AS FOLLOWS:
NOTE:  See instructions on how to make side B.
 R6  *[[With side A up and wrong sides of A and B facing together, insert hook on both A & B ch3 loops,  yo and draw up loop and make a sc]*; ch3 and rep *[ ]* on same sp. ** [Sc nx 2 ch of side A.  Catch side B(insert hook on nx side A ch and nx side B loop, yo and draw loop and make a sc)]** .Rep* *[ ]** until the ch before the ch3 sp.]]*.  Then rep *[[ ]]* up to beg sc. Sl st. on beg sc
R7 TURN with side B up.  Ch1, *[Sc nx st up to ch3 sp. Ch3, sc on same sp]*.  Rep *[ ]* until beg sc.  Sl st on beg sc.
R8 With side B up. Repeat R7.  Fasten off.

How to make Side B:

Ch4 and connect to form a ring.
R1   Ch1 (this counts as 1 sc).  *[sc on nx st ]*.  Rep 11x.  Sl st on top of beg ch1.
R2  Ch3 (this counts as 1dc; dc on same sp. *[2dc on nx ch]*.   Rep *[ ]*until beg ch3.  ATTACH COLOR A (OR YOUR FAVORITE BACKGROUND COLOR).  Sl st on top of the first ch3 post.
R3  *[ Ch3, sk1 ch, sc on nx ch]*.  Rep*[ ]* 12x.   NOTE:  12 CH3 LOOPS MADE.  THE 2 END TAILS ARE TUCKED UNDER AS YOU WORK THE CH3 LOOPS.  Fasten off leaving 8" tail for finishing.     Thread this tail through the plastic (yarn) needle.  work the tail through the wrong side stitches making sure it does not show outside by hiding it under dc or sc v bases.  Clip the end.  NOTE:  Side B must be finished (all yarn ends hidden) before it is attached to Side A.

For those who are trying to make this pattern please let me know if the pattern instructions are clear or if there are any errors.  I'll be happy to clarify  and rewrite to correct them.  I'm learning to write  pattern instructions
so any positive critique will be appreciated.  Thank you. I hope you enjoy making the afghan.
Photo below is side B.