Here's a fun worksheet for your youngest children. Colour the koala picture and then trace the letters of KOALA with your finger to get the letter formation correct. You can also laminate the page and trace the letters with a dry wipe marker.
Koala Finger Tracing
Younger children can get plenty of practice tracing the word KOALA with this handwriting worksheet - and there's space at the end to try writing it on their own, too.