There are many craft recipe sites online. I recently was looking for sand
dough recipes and found many!
Pretty much it is 1 c flour (I used sand!) 1/2 c. corn starch and 1/2 c
water. I also found it on the box of one of the cornstarch brands I picked
up. Not the one that starts with A though.
Good Luck!
PS....Great advice re: dual certification and teaching regular ed via the
arts. Kids learn by doing...why hasn't anyone figured that out yet????