chalkboard

What is chalkboard?

• 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.

• Chalkboards were originally made of smooth, thin sheets of black or dark grey slate stone.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

advantages

Teachers can have students write on the chalkboard to display their understanding of course material.

It is assists classroom management because it requires light.

Aids discussions with other students and tutors via discussion boards and forums

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.

The chalkboard is inexpensive especially when the usable life of the board is considered.

Flexible in use in the sense that instructors may use it, learners may use it and changes can be easily made through erasure.

Colored chalk can be used to develop the topic.

disadvantages

The chalkboard carries with it a "temporariness." Material put on the board cannot be saved or made permanent.

Chalkboards are often fixed in such a way that they are not always at a comfortable height for all potential users.

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.

Problems can arise for learners who have vision impairments.

Other Display Materials

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.

It is ne of the permanent fixtures found in the classroom.

Purposes:

• To approach a unit• To develop a unit• To summarize a

unit

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.

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

Thank you