The Floss Rule is a simple spelling rule that helps students remember when to use a double consonant at the end of a word. The rule states:
• If a word has one vowel only
• The vowel is short
• Ends with f, l, s, and z
• Then double the last letter
![Floss spelling rule](https://www.edubloxtutor.com/wp-content/uploads/2020/08/The-floss-rule-1024x576.jpg)