3. • A chalkboard or blackboard is a
reusable writing surface on which
text or drawings are made with
sticks of calcium sulfate or calcium
carbonate, known, when used for
this purpose, as chalk.
4. • Chalkboards were originally made of
smooth, thin sheets of black or dark
grey slate stone. Modern versions are
often green because the color is
considered easier on the eyes
9. Availability
-Most areas assigned for
instruction are equipped with
chalkboards. Also, if more
board space is needed,
portable boards of various
types and styles are handy.
14. The chalkboard carries with it
a "temporariness." Material
put on the board cannot be
saved or made permanent.
15. Chalkboards are often fixed
in such a way that they are
not always at a comfortable
height for all potential users.
16. Being fixed, chalkboards can
put restrictions on the use of
classroom space and
classroom activities as
learners need to be placed
where they can see the
board.
19. The Bulletin board Display
• The bulletin board is a medium for
displaying material which must be
cooperatively planned and put up by
Teacher and her pupils or student.
20. It is ne of the permanent fixtures found
in the classroom.
22. The multi-purpose board
This type of bulletin board serves many
purposes: like to announce important
events or occasions; to inform the public
about programs and offerings; to
congratulate winners or high
performers and the like.
23. Characteristic of a good bulletin board
or multi-purpose board
• It should be with finished edge
• It must be fixed on the wall to prevent accident
• It must be colorful and attractive. Boarder
designs mounted pictures can promote this.
• Have at least a unified theme for clarity
• Avoid over crowded display
• In putting it up, be guided by the principle of
balance, unity harmony, proportion and contrast
