The document discusses the suffix -ed and how it changes a base word to the past tense. Specifically: 1) The suffix -ed makes either a /d/ sound after a voiced sound, a /t/ sound after an unvoiced sound, or /ed/ or /id/ after t or d. 2) Voiced sounds like /l/, /m/, /n/, /b/ vibrate the vocal cords, while unvoiced sounds like /s/, /k/, /p/, /f/ do not vibrate the vocal cords. 3) The sound that -ed makes is related to whether the final letter of the base word is voiced or unvoiced.

1. The Mysterious Sounds of Suffix -ed By Miss Quick

2. To answer that you need to know what a root or base word is! Simply put-a root or a base word is a word that has meaning A suffix- is a letter or a group of letters added to the end of a word to change how the word is used What is a suffix?

3. How does it change a baseword? It changes it to the past tense Read these words from The Revealers to find out what sound it makes? shadowed brutalized sauntered arced hoisted What do you know about –ed?

4. Take a look at these words from to see if you can figure out the rule: Melted burned banded Kissed smelled asked Peeled grilled filmed Seeded drafted licked Why? How? When? What the….?

5. Suffix –ed makes the sound: /d/ after a voiced sound /t/ after an unvoiced sound /ed/or /id/ after the letter t or d So What is the RULE ALREADY!!!

6. voiced=vibrates your vocal cords /l/, /m/, /n/,/b/ Thrilled, trimmed, pinned, rubbed Notice any relationship b/t the sound –ed makes and the sound the final letter in the baseword makes? Unvoiced=does not vibrate your vocal cords /s/, /k/, /p/, /f/ Kissed, asked, limped, golfed Notice any relationship b/t the sound –ed makes and the sound the final letter in the baseword makes? Voiced/Unvoiced! What does that mean?

7. Let’s take another look at the suffix –ed words from The Revealers: sprawled disoriented flushed veered sprained pantsed paralyzed bone-headed Suffix –ed practice

8. Prizes if you can remember!!! What is that RULE again?