Spelling Rules Worksheet: Practice using 'ck' and 'k' at the end of words with illustrated examples.

Problem Description:

The task involves spelling words based on the images provided, following a specific spelling rule. The rule states:

- To spell the sound `/k/` at the end of a word, use ck after a short vowel (e.g., "sick").
- Use k in all other cases (e.g., "milk").

Solution:

We will identify each image, determine the corresponding word, and apply the spelling rule to write the correct spelling.

---

#### Image 1: A duck
- Word: duck
- Explanation: The word ends with `/k/`, and it follows a short vowel (`u`). According to the rule, we use ck.
- Spelling: duck

#### Image 2: An egg
- Word: egg
- Explanation: The word ends with `/g/`, not `/k/`. No special rule applies here.
- Spelling: egg

#### Image 3: A box of crayons
- Word: crayons
- Explanation: The word does not end with `/k/`. No special rule applies here.
- Spelling: crayons

#### Image 4: A snake
- Word: snake
- Explanation: The word ends with `/k/`, but it does not follow a short vowel (`a`). According to the rule, we use k.
- Spelling: snake

#### Image 5: A house
- Word: house
- Explanation: The word ends with `/s/`, not `/k/`. No special rule applies here.
- Spelling: house

#### Image 6: A mountain
- Word: mountain
- Explanation: The word ends with `/n/`, not `/k/`. No special rule applies here.
- Spelling: mountain

#### Image 7: A boat
- Word: boat
- Explanation: The word ends with `/t/`, not `/k/`. No special rule applies here.
- Spelling: boat

#### Image 8: A dog
- Word: dog
- Explanation: The word ends with `/g/`, not `/k/`. No special rule applies here.
- Spelling: dog

#### Image 9: A boy riding a skateboard
- Word: skateboard
- Explanation: The word ends with `/d/`, not `/k/`. No special rule applies here.
- Spelling: skateboard

#### Image 10: An alarm clock
- Word: clock
- Explanation: The word ends with `/k/`, and it follows a short vowel (`o`). According to the rule, we use ck.
- Spelling: clock

#### Image 11: A cat
- Word: cat
- Explanation: The word ends with `/t/`, not `/k/`. No special rule applies here.
- Spelling: cat

#### Image 12: A trumpet
- Word: trumpet
- Explanation: The word ends with `/t/`, not `/k/`. No special rule applies here.
- Spelling: trumpet

---

Final Answer:

```
duck
egg
crayons
snake
house
mountain
boat
dog
skateboard
clock
cat
trumpet
```

Boxed Answer:
\boxed{duck, egg, crayons, snake, house, mountain, boat, dog, skateboard, clock, cat, trumpet}