Number 19 — nineteen. The last teen pairs the 1 with a circle-topped 9, and nineteen flowers fill three rows of five plus four. Trace 19, write it on your own, and trace the word nineteen.
Nineteen is the last teen: a 1 and then the circle-topped 9, flipped opposite its old partner 6. Loop on top means 9 — the rule now works in both directions. Nineteen flowers fill rows of five, five, five, and four; the count lands one short of a full fourth row, which builds real anticipation for twenty.
Extension: ask the cliffhanger question — what comes after nineteen? Then draw the one missing flower that would complete the last row of five, and count the whole garden: twenty flowers, which is exactly where the final sheet of the set begins.
