Prefix practice worksheet for students to build new words using given prefixes and root words.

Problem Description:

The task is to create new words by combining prefixes from the "Prefixes" list with root words from the "Root Words" list. The goal is to fill in the table with the resulting new words.

Prefixes:

- be
- under
- dis
- im
- un
- in
- re

Root Words:

- stand
- happy
- side
- possible
- read
- like
- do

Solution Approach:

1. Understand Prefixes: Prefixes are added to the beginning of a root word to modify its meaning.
2. Combine Prefixes and Root Words: Pair each prefix with a root word to form a new word. Ensure that the combination makes logical sense.
3. Fill in the Table: Write the prefix, root word, and the resulting new word in the table.

Step-by-Step Solution:

#### 1. Choose Prefixes and Root Words:
- Select one prefix and one root word at a time.
- Combine them to form a new word.

#### 2. Form New Words:
- be + stand → bestand
- This combination doesn't make logical sense in English. Skip or adjust as needed.
- under + stand → understand
- Logical and correct.
- dis + stand → disstand
- This combination doesn't make logical sense. Skip.
- im + stand → imstand
- This combination doesn't make logical sense. Skip.
- un + stand → unstand
- This combination doesn't make logical sense. Skip.
- in + stand → instand
- This combination doesn't make logical sense. Skip.
- re + stand → restart
- Logical and correct.

- be + happy → behappy
- This combination doesn't make logical sense. Skip.
- under + happy → unhappy
- Logical and correct.
- dis + happy → unhappy
- Logical and correct (though "unhappy" is more common).
- im + happy → unhappy
- Logical and correct (though "unhappy" is more common).
- un + happy → unhappy
- Logical and correct.
- in + happy → inhappy
- This combination doesn't make logical sense. Skip.
- re + happy → rehappy
- This combination doesn't make logical sense. Skip.

- be + side → beside
- Logical and correct.
- under + side → underside
- Logical and correct.
- dis + side → disside
- This combination doesn't make logical sense. Skip.
- im + side → imside
- This combination doesn't make logical sense. Skip.
- un + side → unside
- This combination doesn't make logical sense. Skip.
- in + side → inside
- Logical and correct.
- re + side → reside
- Logical and correct.

- be + possible → bepossible
- This combination doesn't make logical sense. Skip.
- under + possible → underpossible
- This combination doesn't make logical sense. Skip.
- dis + possible → impossible
- Logical and correct.
- im + possible → impossible
- Logical and correct.
- un + possible → impossible
- Logical and correct.
- in + possible → inpossible
- This combination doesn't make logical sense. Skip.
- re + possible → repossible
- This combination doesn't make logical sense. Skip.

- be + read → bread
- This combination doesn't make logical sense. Skip.
- under + read → underread
- This combination doesn't make logical sense. Skip.
- dis + read → disread
- This combination doesn't make logical sense. Skip.
- im + read → imread
- This combination doesn't make logical sense. Skip.
- un + read → unread
- Logical and correct.
- in + read → inread
- This combination doesn't make logical sense. Skip.
- re + read → reread
- Logical and correct.

- be + like → belike
- This combination doesn't make logical sense. Skip.
- under + like → underlike
- This combination doesn't make logical sense. Skip.
- dis + like → dislike
- Logical and correct.
- im + like → dislike
- Logical and correct (though "dislike" is more common).
- un + like → unlike
- Logical and correct.
- in + like → inlike
- This combination doesn't make logical sense. Skip.
- re + like → relike
- This combination doesn't make logical sense. Skip.

- be + do → bedo
- This combination doesn't make logical sense. Skip.
- under + do → underdo
- This combination doesn't make logical sense. Skip.
- dis + do → disdo
- This combination doesn't make logical sense. Skip.
- im + do → imdo
- This combination doesn't make logical sense. Skip.
- un + do → undo
- Logical and correct.
- in + do → indo
- This combination doesn't make logical sense. Skip.
- re + do → redo
- Logical and correct.

#### 3. Final Table:
Using the valid combinations, fill in the table:

| Prefix | Root Word | New Word |
|--------|-----------|-------------|
| under | stand | understand |
| re | stand | restart |
| under | happy | unhappy |
| dis | happy | unhappy |
| im | happy | unhappy |
| un | happy | unhappy |
| be | side | beside |
| under | side | underside |
| in | side | inside |
| re | side | reside |
| dis | possible | impossible |
| im | possible | impossible |
| un | possible | impossible |
| un | read | unread |
| re | read | reread |
| dis | like | dislike |
| im | like | dislike |
| un | like | unlike |
| un | do | undo |
| re | do | redo |

Final Answer:

\boxed{
\begin{array}{|c|c|c|}
\hline
\text{Prefix} & \text{Root Word} & \text{New Word} \\
\hline
\text{under} & \text{stand} & \text{understand} \\
\text{re} & \text{stand} & \text{restart} \\
\text{under} & \text{happy} & \text{unhappy} \\
\text{dis} & \text{happy} & \text{unhappy} \\
\text{im} & \text{happy} & \text{unhappy} \\
\text{un} & \text{happy} & \text{unhappy} \\
\text{be} & \text{side} & \text{beside} \\
\text{under} & \text{side} & \text{underside} \\
\text{in} & \text{side} & \text{inside} \\
\text{re} & \text{side} & \text{reside} \\
\text{dis} & \text{possible} & \text{impossible} \\
\text{im} & \text{possible} & \text{impossible} \\
\text{un} & \text{possible} & \text{impossible} \\
\text{un} & \text{read} & \text{unread} \\
\text{re} & \text{read} & \text{reread} \\
\text{dis} & \text{like} & \text{dislike} \\
\text{im} & \text{like} & \text{dislike} \\
\text{un} & \text{like} & \text{unlike} \\
\text{un} & \text{do} & \text{undo} \\
\text{re} & \text{do} & \text{redo} \\
\hline
\end{array}
}