My first machine sewing project was an apron in 4-H.. it was a simple square (just my size) hemmed on 3 sides and a casing on the 4th side. we made a drawstring for the waist and threaded it through the casing.. I got a blue ribbon at the fair.. and it took a whole yard of fabric.. and a monster was created. How very exciting to help a youngster learn a craft that will serve them well throughout their life.. Good for you.