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This module addresses frequently asked questions about the use of clickers.

1. how much time should i give students to answer a clicker question?

This depends greatly on the type and difficulty of the question: in most cases, it takes students between 30 seconds and a minute to process a question and be ready to answer individually or discuss. It then takes a few (1-4) minutes for productive discussion. The level of student discussion and the number of votes in is a good guide as to when to move on. When ~3/4 of the students have responded it is often a good time to announce end is near, then sound warning gong, count down out loud, or turn lights out to indicate that discussion should stop and students should “click in”. Instructors who decide when to end the polling based on the discussion around them often wait too long. While discussion around them will continue to focus on the question, in the rest of the room discussion has often moved on to non-class-related topics, making it harder to pull students back to class material. It is useful to poll the class after several weeks to see if they feel you are giving them too little or too much time.

Using the timer in the countdown mode available with most clicker system software is usually distracting to students and instructors and can limit discussion. It is better to set the timer to the maximum count down duration or in count up mode, and then just stop the question manually when you think it appropriate.

2. how should clicker questions be graded?

Most instructors make clicker questions a portion of the total course grade; between a few % and 15% is common, although a wide variety of approaches are used. The two most common grading schemes used are giving equal credit for correct and incorrect responses (participation only), and giving greater credit for correct than incorrect responses. Some pros and cons to these grading approaches are listed below. Another approach is to give participation credit only most of the time, but occasionally grade individual questions for correct responses. There is no consensus view recommended by research or convention, but our anecdotal observations lead us to lean towards this latter grading policy of always giving credit for participation and occasionally giving additional reward for the correct answer.

Giving credit only for correct responses is not recommended as it distorts the discussion and student response strategies in undesirable directions, and it limits the type of question that can be asked. For example, you cannot ask questions with multiple justifiable answers; yet such questions can generate the most educationally productive discussions. Similarly, not having clicker questions count for any credit is not recommended. S. Freeman et al, “Prescribed Active Learning Increases Performance in Introductory Biology,” CBE Life Sci Educ. 6(2), pp. 132-9 (2007). This sends the message that questions and answers are not important, and students will not take them seriously.

Questions & Answers

where we get a research paper on Nano chemistry....?
Maira Reply
what are the products of Nano chemistry?
Maira Reply
There are lots of products of nano chemistry... Like nano coatings.....carbon fiber.. And lots of others..
learn
Even nanotechnology is pretty much all about chemistry... Its the chemistry on quantum or atomic level
learn
Google
da
no nanotechnology is also a part of physics and maths it requires angle formulas and some pressure regarding concepts
Bhagvanji
Preparation and Applications of Nanomaterial for Drug Delivery
Hafiz Reply
revolt
da
Application of nanotechnology in medicine
what is variations in raman spectra for nanomaterials
Jyoti Reply
I only see partial conversation and what's the question here!
Crow Reply
what about nanotechnology for water purification
RAW Reply
please someone correct me if I'm wrong but I think one can use nanoparticles, specially silver nanoparticles for water treatment.
Damian
yes that's correct
Professor
I think
Professor
Nasa has use it in the 60's, copper as water purification in the moon travel.
Alexandre
nanocopper obvius
Alexandre
what is the stm
Brian Reply
is there industrial application of fullrenes. What is the method to prepare fullrene on large scale.?
Rafiq
industrial application...? mmm I think on the medical side as drug carrier, but you should go deeper on your research, I may be wrong
Damian
How we are making nano material?
LITNING Reply
what is a peer
LITNING Reply
What is meant by 'nano scale'?
LITNING Reply
What is STMs full form?
LITNING
scanning tunneling microscope
Sahil
how nano science is used for hydrophobicity
Santosh
Do u think that Graphene and Fullrene fiber can be used to make Air Plane body structure the lightest and strongest. Rafiq
Rafiq
what is differents between GO and RGO?
Mahi
what is simplest way to understand the applications of nano robots used to detect the cancer affected cell of human body.? How this robot is carried to required site of body cell.? what will be the carrier material and how can be detected that correct delivery of drug is done Rafiq
Rafiq
if virus is killing to make ARTIFICIAL DNA OF GRAPHENE FOR KILLED THE VIRUS .THIS IS OUR ASSUMPTION
Anam
analytical skills graphene is prepared to kill any type viruses .
Anam
Any one who tell me about Preparation and application of Nanomaterial for drug Delivery
Hafiz
what is Nano technology ?
Bob Reply
write examples of Nano molecule?
Bob
The nanotechnology is as new science, to scale nanometric
brayan
nanotechnology is the study, desing, synthesis, manipulation and application of materials and functional systems through control of matter at nanoscale
Damian
Is there any normative that regulates the use of silver nanoparticles?
Damian Reply
what king of growth are you checking .?
Renato
What fields keep nano created devices from performing or assimulating ? Magnetic fields ? Are do they assimilate ?
Stoney Reply
why we need to study biomolecules, molecular biology in nanotechnology?
Adin Reply
?
Kyle
yes I'm doing my masters in nanotechnology, we are being studying all these domains as well..
Adin
why?
Adin
what school?
Kyle
biomolecules are e building blocks of every organics and inorganic materials.
Joe
how did you get the value of 2000N.What calculations are needed to arrive at it
Smarajit Reply
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Source:  OpenStax, Clicker resource guide. OpenStax CNX. Apr 11, 2010 Download for free at http://cnx.org/content/col10724/1.2
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