alleryWhat is the benefit of a scrolling coiled plastic blackboard sheet?
AExtra space, old text kept
BWriting without any chalk
CAutomatic erasing of text
DProjecting text on a wall
Answer & Solution
Correct answer: A. Extra space, old text kept
1. The plastic sheet is drawn across two parallel rollers.
2. Scrolling creates additional writing space.
3. It also saves what has been written; it does not erase or project.
_Source: Wikipedia, Blackboard, Design_
Keep practising Teaching Material and Aids
Browse all Teaching Material and Aids questions for CTET, or explore more Environmental Studies Pedagogy topics.
Related questions
Which field trip sites let children touch plants or animals?How do field trips help children from different backgrounds?What is the main aim of observation on a field trip?What is the usual follow-up activity after a field trip?A field trip usually has which three steps?Which tablet use is described for visually impaired children?Webcams in e-learning are also used to counter what problem?A virtual classroom gives learners what advantage over asynchronous study?