Sound Waves - Extended Student Chart - 2022 EditionThe Sound Waves Spelling Extended Student Chart is an A3 folded chart for individual student use. It includes the most common graphemes used to represent the 43 phonemes of Australian English, along with more complex and unusual graphemes that students will encounter in upper primary. A word example is provided for each grapheme. This chart is designed to help students make correct grapheme choices in spelling lessons and in their everyday writing.