Chalkboards were originally made of slate stone but are now often made of green or brown boards. They are used for teaching in classrooms, establishments, and homes. Chalkboards are inexpensive, provide a large writing space, and allow topics to be easily edited. However, lessons written on chalkboards cannot be saved and chalk dust can be messy and cause respiratory issues for some. Proper chalkboard use involves planning writing, writing legibly, avoiding blocking students, and cleaning the board after use.

1. BY:
WILTER ROJAS ANCAJAS

2. Chalkboards
 Chalkboards were originally made of smooth, thin
sheets of black or dark grey slate stone.
 Modern versions are often green or brown and are thus
sometimes called a green board or brown board
instead.
 Chalkboards include not only those with flat and wide
surfaces those portable types which can be moved or
even serve as dividers
Uses
 In teaching
 In many establishments
 In homes

3. Advantages
1. It is easily available.
2. It is inexpensive and easy to install.
3. It can accommodate so much writing space and
easy to clean. Topics can be listed, deleted or
revised to a final form.
4. It is convenient to use for formally prepared
lessons or for spontaneous sessions.
5. The attention of the class can easily be held and
focused, it being located in front of the room.

4. Disadvantages
1. Lessons or writings on the chalkboard are only for a
day’s use, hence temporary and cannot be saved.
2. Chalk dust makes the area messy.
3. Writing makes one turn his back to the audience.
4. The teacher’s handwriting and spelling deficiency
can cause disruption from the lesson.
5. Some people find the chalk dust uncomfortable or
may be allergic to it, and there has been speculation
about links between chalk dust and respiratory
problems.

5. Guidelines
1. Make sure that the chalkboard and erasers are
cleaned and maintained. Chalk must be available
before the class starts.
2. Plan ahead what you are going to write on the board.
3. Write legibly and neatly. Start writing from the left to
the right.
4. Stand in such a way that you don’t block the view of
the students when writing.
5. Avoid talking to the board while writing. Never use
the hand for erasing.

6. 6. Clean the board after using so it will be ready for the
next teacher to use.
7. Don’t draw graphs, diagrams and other figures on the
board, if the use of transparency and the OHP will be
more efficient and effective.
F.Y.I.
 The term "chalkboard" dates from 1935 to 1940
 The chalkboard was introduced into the US
education system in 1801

7. References
 Principles of Teaching I
 http://en.wikipedia.org/wiki/Chalkboard