Worksheet for sorting multisyllabic words with r-controlled vowels.

Problem Description:

The task involves sorting multisyllabic words based on their R-controlled vowel combinations. The goal is to categorize each word under the appropriate R-controlled vowel sound: `ar`, `er`, `ir`, `ur`, or `or`. An example is provided: the word "parsley" has the R-controlled vowel combination `/er/`.

Solution Approach:

1. Understand R-Controlled Vowels:
- Ar: Words like "car," "bar," "star."
- Er: Words like "her," "ferret," "terrible."
- Ir: Words like "bird," "girl," "third."
- Ur: Words like "burn," "turn," "hurt."
- Or: Words like "for," "horror," "coral."

2. Identify the R-Controlled Vowel in Each Word:
- Carefully analyze each word to determine which R-controlled vowel sound it contains.

3. Sort the Words:
- Place each word under the correct column (`ar`, `er`, `ir`, `ur`, or `or`) based on its R-controlled vowel sound.

Step-by-Step Solution:

#### List of Words:
- certain, horror, marble, battery, surprise
- concert, curvy, thirty, doctor, parsley
- award, portion, letter, dirty, turkey
- circle, turnip, thirsty, barking, tornado

#### Sorting Process:

1. Certain: The R-controlled vowel is `/er/` (as in "cer-tain").
- Category: er

2. Horror: The R-controlled vowel is `/or/` (as in "ho-ror").
- Category: or

3. Marble: The R-controlled vowel is `/er/` (as in "mar-bler").
- Category: er

4. Battery: The R-controlled vowel is `/er/` (as in "bat-te-ry").
- Category: er

5. Surprise: No R-controlled vowel.
- Category: None (not applicable)

6. Concert: The R-controlled vowel is `/er/` (as in "con-cer-t").
- Category: er

7. Curvy: The R-controlled vowel is `/er/` (as in "cur-vy").
- Category: er

8. Thirty: The R-controlled vowel is `/er/` (as in "thir-ty").
- Category: er

9. Doctor: The R-controlled vowel is `/er/` (as in "doc-tor").
- Category: er

10. Parsley: The R-controlled vowel is `/er/` (as in "par-sle-y").
- Category: er

11. Award: The R-controlled vowel is `/ar/` (as in "aw-ard").
- Category: ar

12. Portion: The R-controlled vowel is `/er/` (as in "por-tion").
- Category: er

13. Letter: The R-controlled vowel is `/er/` (as in "let-ter").
- Category: er

14. Dirty: The R-controlled vowel is `/er/` (as in "dir-ty").
- Category: er

15. Turkey: The R-controlled vowel is `/er/` (as in "tur-key").
- Category: er

16. Circle: The R-controlled vowel is `/er/` (as in "cir-cle").
- Category: er

17. Turnip: The R-controlled vowel is `/ur/` (as in "tur-nip").
- Category: ur

18. Thirsty: The R-controlled vowel is `/er/` (as in "thirst-y").
- Category: er

19. Barking: The R-controlled vowel is `/ar/` (as in "bar-king").
- Category: ar

20. Tornado: The R-controlled vowel is `/or/` (as in "tor-na-do").
- Category: or

Final Sorting:

| ar | er | ir | ur | or |
|----------|------------|----------|----------|-----------|
| parsley | | | | |
| award | certain | | | |
| barking | horror | | | |
| | marble | | | |
| | battery | | | |
| | concert | | | |
| | curvy | | | |
| | thirty | | | |
| | doctor | | | |
| | parsley | | | |
| | portion | | | |
| | letter | | | |
| | dirty | | | |
| | turkey | | | |
| | circle | | | |
| | turnip | | | |
| | thirsty | | | |
| | tornado | | | |

Explanation:

- Words are sorted into columns based on their R-controlled vowel sounds.
- Words without an R-controlled vowel (e.g., "surprise") are not placed in any category.

Final Answer:

\boxed{
\begin{array}{c|c|c|c|c}
\text{ar} & \text{er} & \text{ir} & \text{ur} & \text{or} \\
\hline
\text{parsley} & \text{certain} & & & \\
\text{award} & \text{horror} & & & \\
\text{barking} & \text{marble} & & & \\
& \text{battery} & & & \\
& \text{concert} & & & \\
& \text{curvy} & & & \\
& \text{thirty} & & & \\
& \text{doctor} & & & \\
& \text{parsley} & & & \\
& \text{portion} & & & \\
& \text{letter} & & & \\
& \text{dirty} & & & \\
& \text{turkey} & & & \\
& \text{circle} & & & \\
& \text{turnip} & & & \\
& \text{thirsty} & & & \\
& \text{tornado} & & & \\
\end{array}
}