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The other end of the age spectrum has also expanded. Many individuals take courses well into adulthood even if they do not attend formal university or college. Adult education , as it is sometimes called, often takes place in workplaces, but it often also happens in public high schools or at local community colleges or universities. Some adult students may be completing high school credentials that they missed earlier in their lives, but often the students have other purposes that are even more focused, such as learning a trade-related skill. The teachers of adult students have to adjust their instructional strategies and relationships with students so as to challenge and respect their special strengths and constraints as adults (Bash, 2005). The students’ maturity often means that they have had life experiences that enhance and motivate their learning. But it may also mean that they have significant personal responsibilities—such as parenting or a full-time job—which compete for study time, and that make them impatient with teaching that is irrelevant to their personal goals or needs. These advantages and constraints also occur to a lesser extent among “regular” high school students. Even secondary school teachers must ask, how they can make sure that instruction does not waste students’ time, and how they can make it truly efficient, effective, and valuable. Elsewhere in this book (especially in [link] , [link] , and [link] , about assessment and instruction), we discuss these questions from a number of perspectives.

New trend #2: using technology to support learning

For most teachers, “technology” means using computers and the Internet as resources for teaching and learning. These tools have greatly increased the amount and range of information available to students, even if their benefits have sometimes been exaggerated in media reports (Cuban, 2001). With the Internet, it is now relatively easy to access up-to-date information on practically any subject imaginable, often with pictures, video clips, and audio to accompany them. It would seem not only that the Internet and its associated technologies have the potential to transform traditional school-based learning, but also that they have in fact begun to do so.

For a variety of reasons, however, technology has not always been integrated into teachers’ practices very thoroughly (Haertel&Means, 2003). One reason is practical: in many societies and regions, classrooms contain only one or two computers at most, and many schools have at best only limited access to the Internet. Waiting for a turn on the computer or arranging to visit a computer lab or school library limits how much students use the Internet, no matter how valuable the Internet may be. In such cases, furthermore, computers tend to function in relatively traditional ways that do not take full advantage of the Internet: as a word processor (a “fancy typewriter”), for example, or as a reference book similar to an encyclopedia.

Even so, single-computer classrooms create new possibilities and challenges for teachers. A single computer can be used, for example, to present upcoming assignments or supplementary material to students, either one at a time or small groups. In functioning in this way, the computer gives students more flexibility about when to finish old tasks or to begin new ones. A single computer can also enrich the learning of individual students with special interests or motivation. And it can provide additional review to students who need extra help. These changes are not dramatic, but they lead to important revisions in teachers’ roles: they move teachers away from simply delivering information to students, and toward facilitating students’ own constructions of knowledge.

Questions & Answers

how do they get the third part x = (32)5/4
kinnecy Reply
can someone help me with some logarithmic and exponential equations.
Jeffrey Reply
sure. what is your question?
ninjadapaul
20/(×-6^2)
Salomon
okay, so you have 6 raised to the power of 2. what is that part of your answer
ninjadapaul
I don't understand what the A with approx sign and the boxed x mean
ninjadapaul
it think it's written 20/(X-6)^2 so it's 20 divided by X-6 squared
Salomon
I'm not sure why it wrote it the other way
Salomon
I got X =-6
Salomon
ok. so take the square root of both sides, now you have plus or minus the square root of 20= x-6
ninjadapaul
oops. ignore that.
ninjadapaul
so you not have an equal sign anywhere in the original equation?
ninjadapaul
Commplementary angles
Idrissa Reply
hello
Sherica
im all ears I need to learn
Sherica
right! what he said ⤴⤴⤴
Tamia
hii
Uday
what is a good calculator for all algebra; would a Casio fx 260 work with all algebra equations? please name the cheapest, thanks.
Kevin Reply
a perfect square v²+2v+_
Dearan Reply
kkk nice
Abdirahman Reply
algebra 2 Inequalities:If equation 2 = 0 it is an open set?
Kim Reply
or infinite solutions?
Kim
The answer is neither. The function, 2 = 0 cannot exist. Hence, the function is undefined.
Al
y=10×
Embra Reply
if |A| not equal to 0 and order of A is n prove that adj (adj A = |A|
Nancy Reply
rolling four fair dice and getting an even number an all four dice
ramon Reply
Kristine 2*2*2=8
Bridget Reply
Differences Between Laspeyres and Paasche Indices
Emedobi Reply
No. 7x -4y is simplified from 4x + (3y + 3x) -7y
Mary Reply
is it 3×y ?
Joan Reply
J, combine like terms 7x-4y
Bridget Reply
how do you translate this in Algebraic Expressions
linda Reply
Need to simplify the expresin. 3/7 (x+y)-1/7 (x-1)=
Crystal Reply
. After 3 months on a diet, Lisa had lost 12% of her original weight. She lost 21 pounds. What was Lisa's original weight?
Chris Reply
what's the easiest and fastest way to the synthesize AgNP?
Damian Reply
China
Cied
types of nano material
abeetha Reply
I start with an easy one. carbon nanotubes woven into a long filament like a string
Porter
many many of nanotubes
Porter
what is the k.e before it land
Yasmin
what is the function of carbon nanotubes?
Cesar
I'm interested in nanotube
Uday
what is nanomaterials​ and their applications of sensors.
Ramkumar Reply
what is nano technology
Sravani Reply
what is system testing?
AMJAD
preparation of nanomaterial
Victor Reply
Yes, Nanotechnology has a very fast field of applications and their is always something new to do with it...
Himanshu Reply
good afternoon madam
AMJAD
what is system testing
AMJAD
what is the application of nanotechnology?
Stotaw
In this morden time nanotechnology used in many field . 1-Electronics-manufacturad IC ,RAM,MRAM,solar panel etc 2-Helth and Medical-Nanomedicine,Drug Dilivery for cancer treatment etc 3- Atomobile -MEMS, Coating on car etc. and may other field for details you can check at Google
Azam
anybody can imagine what will be happen after 100 years from now in nano tech world
Prasenjit
after 100 year this will be not nanotechnology maybe this technology name will be change . maybe aftet 100 year . we work on electron lable practically about its properties and behaviour by the different instruments
Azam
name doesn't matter , whatever it will be change... I'm taking about effect on circumstances of the microscopic world
Prasenjit
how hard could it be to apply nanotechnology against viral infections such HIV or Ebola?
Damian
silver nanoparticles could handle the job?
Damian
not now but maybe in future only AgNP maybe any other nanomaterials
Azam
Hello
Uday
I'm interested in Nanotube
Uday
this technology will not going on for the long time , so I'm thinking about femtotechnology 10^-15
Prasenjit
can nanotechnology change the direction of the face of the world
Prasenjit Reply
At high concentrations (>0.01 M), the relation between absorptivity coefficient and absorbance is no longer linear. This is due to the electrostatic interactions between the quantum dots in close proximity. If the concentration of the solution is high, another effect that is seen is the scattering of light from the large number of quantum dots. This assumption only works at low concentrations of the analyte. Presence of stray light.
Ali Reply
the Beer law works very well for dilute solutions but fails for very high concentrations. why?
bamidele Reply
how did you get the value of 2000N.What calculations are needed to arrive at it
Smarajit Reply
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Source:  OpenStax, Educational psychology. OpenStax CNX. May 11, 2011 Download for free at http://cnx.org/content/col11302/1.2
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