Lesson Notes By Weeks and Term - Senior Secondary 1

Input devices: Keyboard

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Term: 1st Term

Week: 10

Class: Senior Secondary School 1

Age: 15 years

Duration: 40 minutes of 2 periods each

Date:       

Subject:      Computer Studies and ICT

Topic:-       Input devices: Keyboard

SPECIFIC OBJECTIVES: At the end of the lesson, pupils should be able to

  1. Define keyboard
  2. Describe the structures of a keyboard and their functions
  3. List some combination and helpful keys on the keyboard

INSTRUCTIONAL TECHNIQUES: Identification, explanation, questions and answers, demonstration, videos from source

INSTRUCTIONAL MATERIALS: Videos, loud speaker, pictures, Data Processing for senior Secondary Education by Hiit Plc, WAPB Computer Studies for Senior Secondary I by Adekunle et al, On-line Materials.

INSTRUCTIONAL PROCEDURES

PERIOD 1-2

PRESENTATION

TEACHER’S ACTIVITY

STUDENT’S ACTIVITY

STEP 1

INTRODUCTION

The teacher reviews the previous lesson on mouse

Students pay attention

STEP 2

EXPLANATION

He defines and describes the structure of a keyboard

 

Students pay attention and participates

STEP 3

DEMONSTRATION

He further lists some combination and helpful keys on the keyboard

Students pay attention and participate

STEP 4

NOTE TAKING

The teacher writes a summarized note on the board

The students copy the note in their books

 

NOTE

KEYBOARD

Keyboard is the most common and very popular input device which helps in inputting data to the computer. The keyboard looks very similar to the keyboards of electric typewriters, with some additional keys. Keyboards allow a computer user to input letters, numbers, and other symbols into a computer.

Structure of the Keyboard

Keyboards are of two sizes 84 keys or 101/102 keys, but now keyboards with 104 keys or 108 keys are also available for Windows. A standard computer keyboard is called a QWERTY keyboard because of the layout of its typing area which is similar to that of a typewriter.

Keyboards will vary from manufacturer to manufacturer but generally have the following areas:

Function Keys: These keys are assigned a special task or function. Here is a sample of common function keys and associated tasks.

F1 Get Help or visit Microsoft Office Online

F5 Find and replace

F7 Choose the Spelling command (Review tab)

F8 Usually used with LCD projector/dual monitor device.

F10 Show Key Tips

F12 Choose the Save As command (Microsoft Office Button)

Function keys are also used in combination with the Shift, Alt, and Ctrl keys.

Typewriter Keys: letters, numbers, and punctuation keys. Additional keys include the space bar, shift key (for capital letters and top symbol on keys), and Caps Lock key for a series of capital letters. Press the Enter key to begin a new paragraph in a word processor program (also the same as clicking the OK button in a dialog box) The Spacebar separates a series of letters and/or numbers into Standard English text.

Cursor Control Keys : also called arrow keys, which move your text cursor in the direction of the arrow.

Numeric Keypad : similar to a calculator for entering numbers and doing mathematical operations quickly and easily.

 

Combination Keys:

  1. Shift Key: The Shift key is used to make capital letters or to access the punctuation and other symbols on the number keys and other keys. (Also used in combination with function and/or ctrl keys.)
  2. The Alt key: It is used in combination with the command keys for special functions such as Ctrl+Alt+Dlt for task manager or ALT+F4 Exit Office Word 2007
  3. Control key: It used in combination with other command keys. CTRL+F10 will maximize the document window. .
  4. Caps Lock: The Shift key is used for a single capital letter and the Caps Lock could be used for emphasis or to create a title. (If you press the Shift key while the Caps Lock is on, the letters will return to normal.)

 

Helpful Keys

  1. Windows key: Shortcut for the start menu.
  2. PrtScn/SysRq Print Screen: pressing print screen will capture the entire screen, while pressing the alt key in combination with print screen will capture the currently selected window.
  3. Esc Escape: shortcut in dialog boxes for No, Quit, Exit, Cancel, or Abort, as well as a common shortcut key for the Stop button in many web browsers.

Others are:

  1. Navigation keys: Arrow keys, Page Up/Page Down, Home, and End are convenient to move your cursor to the desired location.
  2. Backspace: Erases text to the left of the cursor for each time you click on the key.

iii. Delete: Erases text to the right of the cursor for each time you click on the key. Or click and drag your cursor over a line(s) of text to select the text and click Delete. All the selected text will be deleted.

 

 

EVALUATION:    1. Define Keyboard

  1. Describe a keyboard and state its functions
  2. List five combination and helpful keys you know stating                    their uses

CLASSWORK: As in evaluation

CONCLUSION: The teacher commends the students positively