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Transcript of 120430-lak12
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It's Just About Learning the
Multiplication Table
Martin SchnLifeLongLearning
Graz University of
Technology
Mandellstrae 13, A-8010
Graz
+433168734931
Martin EbnerSocial Learning
Graz University of
Technology
Mnzgrabenstrae 35A/I, A-
8010
Graz
Georg KothmeierSocial Learning
Graz University of
Technology
Mnzgrabenstrae 35A/I, A-
8010
Graz
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Content1. Presumptions for 1x1
2. Experiences with developing an adaptive or
intelligent program
3. Surprises & future Contact for use thisapplications
Or: this is a story, how we began to think about a
teaching problem, how we tried to solve it
with a small application and how this leaded
us to Learning Analytics & Educational DataMining
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Task
Application to test the skills at the multiplication table.
Special: Algorithm for a somewhere intelligent procedure. Situation:
Pupil is introduced to a teacher. He/She tries to gain an overview of the
tasks the students can do reliable well in an optimal way .
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Basics
learning math starts before the school begins cultural differences, some obviously based on language
implications
linguistic competence is needed mathematic is the first non-native language
many children do not really understand reasons for crucial
aspects of the procedure
the most common and traditional way to learn the
multiplication table is drill and practice
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How to According to current neurological oriented
research results, but also based on a veryold educational tradition, teaching should
use tactile, optical and acoustic processing
methods in every single case intensively
when one observes deviations from the
mainstream. Learning / teaching multiplication tables
should not be reduced on a machine
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Program / Checklist
The system should estimate the competence grade of thelearner
The system should provide appropriate tasks according to
the competence grade of the learner.
Nevertheless the tasks should tend to be challenging.
The system should ensure that already well-done exercises
are repeated and practiced. After succeeding a problem the
probability for a repeated display decreases in two levels
(similar to a Leitner System )
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Checklist cont.
In general the system should be motivating and show thatlearning can be fun.
The system should record and safe fine-grained data of all
done exercises, test results and the current competence
grade of the learner in order to prepare the next sessions in
an adequate way.
It should relieve the teacher from this unsolvable task as an
information processing tool
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Checklist - Addon
during this spring we defined another goal:Today we are able to present a database for organizing
schools, classes and individuals with an interface for the
conventional desktop browsers and also for Android and
Apple mobile devices.
The web-application ist written in php/mysql
the apps in objectiveC (iPhone) &
JAVA (Android).
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Measurement
the goal is to generate a complete table to inform learnersas well as teachers about their competence in every single
task, in every single multiplication fact
(no probabilistic)
Teachers can talk about quantity:
I have 4 pupils who . And 6 who .
(Will teacher recognize.?)
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Algorithm
The presentation of the tasks is not only
randomly generated..
At the very first contact a moderate
problem is presented. According to the
results more or less difficult tasks arefollowing..
The competence level of the test subject
is then estimated and after every task
recalculated. This determines the
difficulty of the next tasks.
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Competence1. estimate the competence level:
2. After every new solved or unsolved problem we choose
a smooth way for adopting this first estimation of
competence to the experience during the sessions
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Difficulty
Without any empirical data we decided to use the rankingfor the tables as follows Youll find this hierarchy in mostdidactical concepts:
easy 1, 2, 4, 3, 5, 8, 6, 7, 9 difficult
we transformed these ranking in difficulty levels between1 and 0.
We discussed to integrate a statistical founded ranking, butat this point we fear, the teachers would be somewhereconfused about the results. Ill speak about this problem
later.
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Stored Data
The answers of the learners are marked with 0,1 or 2:1 shows that the user knew the correct answer once
2 indicates that the student had two consecutive correct
answers (this means a question is well known)0 indicates, the last answer was incorrect (or this item
was presented never before)
Additional we store: used time, result, task no., everpresented
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Selecting the next ItemWe use a random number between 0 and 1 ot decide, which
category is activited to generate the next multiplicationproblem: Therefore three cases are defined:
Case 1: If the random number is 0= 0.15 than a
known question marked with 1 is chosen.
Case 3: The random number is x > 0.15 than an
unknown question out of the extended and actual learningarea is chosen.
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Extended Area
Extended area means the idea, that wechoose items not only in the learning
area, that means under the level of
competence.
To produce some dynamic and thechance to get a higher level, we add
now .15 to the actual estimation of the
degree of competence of the student
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Prototype
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mathe.tugraz.at
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Register (is simple!)
If you want to test this application you can use noschool for an individual registration.If you want to administer a whole school and classlists you should [email protected] send you an administration-account.
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Infomationprocessing
The matrix at the left shows the history: The beige colour
indicates well known results, the brown is one rightanswer. The rabbit comes from left to right to the carrot
and catches one - if the pupil produces consecutive right
answers.
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DetailsIf you point over with the mouse on
the matrix, you see themultiplication fact behind the
symbol.
Download:
1. http://mathe.tugraz.at/ -
2. http://itunes.apple.com/at/app/1x1
trainer/id452707340?mt=8 -3. https://market.android.com/detail
s?id=at.tugraz.einmaleinstrainer
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Study first research study was carried out at a primary school in Austria.
Begin: summer semester 2011
42 pupils of the primary school Laubegg (age: 9-10).
at least 4 weeks. Some of the learners ignored this time restriction andplayed the game again and again over months.
Learners learned on computers at the school as well as on their
personal computers at home.
12.926 answers where given which means that on average each learneranswered 308 questions- they did 3.4 times the whole multiplicationtable.
Bearing in mind that there was no real pressure from teachers sideusing the program it is a considerable pleasant high number.
Furthermore it can be stated that pupils seemed to enjoy using theapplication or at least get not bored.
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Highscores
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We dont know
More than half of the learners did not reach the 100 percent level
(= 90 items are well-known). Therefore we have to think aboutthis group of learners: Perhaps they
didnt get used to / have problems with the interface
do not know the necessary operations; are not able to solve
the learning problem correctly
misinterpret an assignment
are distracted by the environment
are badly concentrated for several reasons.
Could we gather more information to know more?
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Analyses
Ill show here some graphs of the collected statstical data.
We made the experience, that the teachers in our interviews
are interested in very short compact information,
overviews.
We fear, that if we would produce too much information the
teacher would than reject the entire system .
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Demotivated learner
One learner with a weak
performance attracted our attentionbecause of a very high number of
trials (513). A detailed inspection
showed that he did not work very
intensively. In the first two tasks
he/she failed, then eleven tasks
were ok, his performance rose
abruptly. However, afterwards, hecontinued approximately 400 times
to wait the whole answering time
without doing anything but asking
for a new assignment.
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Motivated Captain
The most diligent learner.
In the beginning, theassignments were solved
correctly, then some mistakes
occurred, afterwards a
learning process can berecognized and finally with
some occasional mistakes the
learner works on a high
performance level.Obviously, the learner was
highly motivated to deal with
the assignments given by the
program.
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Medium LearnerIn the beginning, the learner made
mistakes in every second
assignment (0.5), followed by 7mistakes consecutively. This is the
reason for the big decrease (0.15).
Afterwards, the learner gave a
number of right answers and the
rate of correct answers increased
back to 0.5. In the following phase
an up and down can be seen till a
number of right consecutive
answers helps to reach a level of
0.7. But then the number of
mistakes rose again and the rate
went down to about 0.5.
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Medium Learner 2
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Weak Learner
Classified as 2 id156
0
2
4
6
8
10
111
21
31
41
51
61
71
81
91
101
111
121
131
141
151
161
171
181
191
201
211
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Summary
It is as easy as never before to collect data
We perceive much more details about the
learners the learning process as never
before!!
Teacher get precise information (class lists
are coming soon)
This application was designed to test. Now
we see, it can be effectivly used for learning
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Future Work
closer look at the learners: perhaps more intelligentanalyses of the data? more data more concepts?
Hints for Learners?
Special Results for Teachers
Alerts for Teachers
AND we are already working on the Mathe-Multi-Trainer
(multi digit
multiplication:http://mathe.tugraz.at/~mickname/access/login
)
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Acknowledgements
We express our gratitude to the teachers of the
primary school in Laubegg (Styria, Austria) as well
as all participating school children.
We are equally indebted to our funding agency
Internet Foundation Austria (IPA) for supporting
our ideas and helping us to work on the future of
education.
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Thank you!
Martin Schn
TU Graz Austria