Visual Communication (LibreOffice) — Class 7 Science (Samacheer Kalvi)
TN State Board (Samacheer Kalvi) Class 7 Science, Term 3 — Chapter 6 (Computer Science). Working with LibreOffice.
1. About this chapter
This chapter covers the LibreOffice office suite and its components, and how to create, format and print a text document in LibreOffice Writer.
2. LibreOffice and its components
- LibreOffice is a powerful, free office suite used by millions of people.
| Component | Use |
|---|---|
| Writer | a text document editor for letters, books, reports and newsletters |
| Calc | spreadsheets |
| Impress | presentations |
| Base | create and edit forms, views and relations (databases) |
| Math | the formula / equation editor |
3. Working with a text document
- Use the File menu on the menu bar for document tasks:
- File → New — create a new document.
- File → Print — print the document.
- A font is a set of characters and numbers in a certain style (e.g. Arial, Times New Roman).
- Text alignment: LibreOffice offers four alignments — left, right, centre and justify.
4. Page orientation
- Landscape orientation is a horizontal display — the page is wider than it is tall.
- Portrait orientation is a vertical display — the page is taller than it is wide.
5. Worked examples
Example 1. Which LibreOffice component is the formula editor? Math.
Example 2. Which menu command prints a document? File → Print.
Example 3. How many types of text alignment are there? Four (left, right, centre, justify).
6. Book-back questions (Samacheer Kalvi)
I. Choose the correct answer
- The powerful, free office suite used by millions is — (a) LibreOffice / (b) Tux Paint. Ans: (a) LibreOffice.
- The component that creates and edits forms, views and relations is — (a) Writer / (b) Base. Ans: (b) Base.
- The LibreOffice formula/equation editor is — (a) Calc / (b) Math. Ans: (b) Math.
- The number of alignment types in LibreOffice is — (a) two / (b) four. Ans: (b) four.
- A horizontal page display is called — (a) landscape / (b) portrait. Ans: (a) landscape.
II. Fill in the blanks 6. A font is a set of characters and numbers in a certain style. 7. To print a document, choose File → Print on the menu bar. 8. To create a new document, choose File → New on the menu bar.
III. Answer briefly 9. What is LibreOffice Writer used for? — Creating text documents such as letters, books, reports and newsletters. 10. Differentiate portrait and landscape orientation. — Portrait is taller than wide (vertical); landscape is wider than tall (horizontal).
7. Common mistakes
- Mistake: Calling Calc the formula editor. Fix: Math is the formula/equation editor; Calc is the spreadsheet.
- Mistake: Mixing up portrait and landscape. Fix: Portrait = taller (vertical); landscape = wider (horizontal).
- Mistake: Forgetting how to print. Fix: Use File → Print on the menu bar.
8. Quick revision
- Term 3 · Ch 6 · visual communication (LibreOffice).
- LibreOffice = free office suite; Writer (text documents), Calc (spreadsheets), Impress (slides), Base (databases), Math (formulas).
- File → New (new document), File → Print (print); font = a character style; four alignments (left, right, centre, justify).
- Landscape = horizontal (wider); portrait = vertical (taller).
