Fold your paper in half vertically. Keep the open portion to the top and the fold at the bottom.
Fold the top sheet down so that it meets the bottom fold made in the previous step.
Use the marker to make a large circle on the front of the card.
Draw eyes and nose above the fold. Draw a pair of ears so that they end right above the fold.
Draw a smile on the front flap so that it touches the fold. Add hair.
Open the card. Draw the top of the mouth below the ears (to make sure the mouth is hidden when the card is folded).
Connect the top and bottom of the mouth with lines. If your child needs help making a straight line, use a ruler.
Write a message inside the mouth. Make sure that it finishes above the bottom fold so that the words are hidden when the card is closed. Add in any extra details like dots or stars in the background.
Notes
Choose the color construction paper and marker of your choice! The metallics look really great on dark paper colors.