The purpose of this work was to study the variations in children's early wr
iting forms in Spanish and the relationship among different writing forms,
phonological awareness and the demands of the writing tasks. A group of kin
dergarten children was assessed in: (a) the ability to match initial sounds
in words, (b) the ability to segment words into phonemes, (c) the knowledg
e of sound-letter correspondences, and (d) the performance on tasks present
ing different cognitive demands: word writing and text writing. Results sho
w that children produced a wide range of forms in both tasks, being the for
ms used for word writing more elaborated than the forms used for text writi
ng. These results suggest that in the process of writing acquisition, child
ren move back and forth across forms of writing. The analysis of the relati
onship between the writing farms and phonological awareness resulted in the
identification of the different mechanisms children might be using to writ
e, from an unanalytic approach to print to an analytic phonological mechani
sm. The pattern of variation observed in the children's performance when wr
iting words and texts seems to reflect the interplay among different types
and levels of knowledge, knowledge about print, the phonological structure
of words, sound-letter correspondences, and the cognitive demands of the ta
sks.