Back to School Crossword Puzzle with educational clues for students.

To solve the crossword puzzle, we will use the clues provided in the "Across" and "Down" sections to fill in the numbered grid. Let's go through each clue step by step.

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ACROSS Clues

1. 5. Everyone is excited for the ______ of school.
- This refers to the start of the school year.
- Answer: Beginning

2. 6. Used to practice multiplication, division, addition, subtraction.
- These are math problems or exercises.
- Answer: Problems

3. 13. Topic in addition, subtraction.
- This could be a subject or concept related to arithmetic.
- Answer: Math

4. 14. Type of pen.
- A common type of pen used in schools.
- Answer: Ballpoint

5. 15. Opposite of inside.
- The opposite of "inside" is "outside."
- Answer: Outside

6. 17. Place to do work.
- A place where students do their homework or study.
- Answer: Desk

7. 18. 3" x 5" cards are called ______.
- These are small cards often used for notes or flashcards.
- Answer: Index Cards

8. 19. Makes marks that cannot be removed.
- A tool that creates permanent marks.
- Answer: Permanent Marker

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DOWN Clues

1. 1. Before school or ______.
- This refers to the time before school starts.
- Answer: Class

2. 2. Trick or treat at this time of year.
- This is associated with Halloween.
- Answer: October

3. 3. The art of learning nuts.
- This is a play on words; "nuts" here means facts or information.
- Answer: Study

4. 4. These animals collect nuts.
- Squirrels are known for collecting nuts.
- Answer: Squirrels

5. 6. Stuff you eat is called ______.
- Food is what you eat.
- Answer: Food

6. 7. Used to bring highlight text.
- A tool used to highlight text.
- Answer: Highlighter

7. 8. Plural of ruler.
- The plural form of "ruler."
- Answer: Rulers

8. 9. Random drawing could be called ______.
- A random drawing is often referred to as a lottery.
- Answer: Lottery

9. 10. Found in a pencil case.
- Items commonly found in a pencil case include pens, pencils, erasers, etc.
- Answer: Pencils

10. 11. Something to talk about is called a ______.
- A topic of conversation.
- Answer: Subject

11. 12. Another word for flu.
- Flu is also known as influenza.
- Answer: Influenza

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Filling in the Grid

Using the answers above, we can fill in the crossword grid. Here is the completed grid:

```
+---+---+---+---+---+---+---+---+---+---+
| B | E | G | I | N | N | I | N | G | |
+---+---+---+---+---+---+---+---+---+---+
| | | | | | | | | | |
+---+---+---+---+---+---+---+---+---+---+
| | | | | | | | | | |
+---+---+---+---+---+---+---+---+---+---+
| | | | | | | | | | |
+---+---+---+---+---+---+---+---+---+---+
| | | | | | | | | | |
+---+---+---+---+---+---+---+---+---+---+
| | | | | | | | | | |
+---+---+---+---+---+---+---+---+---+---+
| | | | | | | | | | |
+---+---+---+---+---+---+---+---+---+---+
| | | | | | | | | | |
+---+---+---+---+---+---+---+---+---+---+
| | | | | | | | | | |
+---+---+---+---+---+---+---+---+---+---+
| | | | | | | | | | |
+---+---+---+---+---+---+---+---+---+---+
```

(Note: The actual grid layout would need to be filled in based on the specific structure of the crossword puzzle, which isn't shown here.)

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Final Answer

The completed crossword puzzle uses the following answers:
- Across: Beginning, Problems, Math, Ballpoint, Outside, Desk, Index Cards, Permanent Marker
- Down: Class, October, Study, Squirrels, Food, Highlighter, Rulers, Lottery, Pencils, Subject, Influenza

Boxed Final Answer:
\boxed{Beginning, Problems, Math, Ballpoint, Outside, Desk, Index Cards, Permanent Marker, Class, October, Study, Squirrels, Food, Highlighter, Rulers, Lottery, Pencils, Subject, Influenza}