dudoc 160111 1
TRANSCRIPT
Use of ICT for acquiring, practicing and assessing algebraic expertise
Christian [email protected]/~christianbSupervisors: Paul Drijvers and Jan van MaanenDudoc 18-jan-2011
Refresh
- ICT and algebraic expertise- Assessment and feedback
- In what way can the use of ICT support acquiring, practicing and assessing relevant mathematical skills?
Algebraic expertise
• Arcavi• Kop & Drijvers• Pierce & Stacey• (Structure sense,
e.g. Hoch & Dreyfus)
Extension of Gestalt
• Gestalt• Visual salience
Bokhove, C., & Drijvers, P. (2010b). Symbol sense behavior in digital activities. For the Learning of Mathematics, 30(3), 43-49.
Gestalt view: pattern salience, local salience and strategic decision
Design research
(Tessmer)
1st cycle
2nd cycle
3rd cycle
Prelim cycle: criteria for toolsFirst choose a toolEvaluation instrument, externally validated, first formulate
want we want, then see what there is. A selection:– Stores both answers & solutions students;– Steps & freedom to choose own strategy;– Authoring tool for own questions;– Intuitive interface incl. equation editor
(‘use to learn’ vs. ‘learn to use’)– 60+ tools evaluated;
Bokhove, C., & Drijvers, P. (2010). Digital tools for algebra education: criteria and evaluation. International Journal of Computers for Mathematical Learning, 15(1), 45-62. (link)
1st cycle: 1-to-1s
Qual. analysis (video, camtasia, atlas TI)
Symbol SenseQuality of tool Feedback
6 multihour think-aloud1-to-1 sessions with
17/18 year oldsI want to know what’s going
on in their minds
2nd cycle
Jan-Mar 2010, EnkhuizenDigital Mathematical Environment (DME)
www.fi.uu.nl/dwo/voho Two 6vwo 17/18 yr olds
Design choices
Follow from 1-to-1 sessions prototype•4 activities in 4 categories•Randomization (note “strange values”)•Feedback (many types, Hattie & Timperley)•Crises•Formative scenarios: first a lot of feedback then gradually less
Bokhove, C. (2010). Implementing feedback in a digital tool for symbol sense.. International Journal for Technology in Mathematics Education. 17(3)
Crises“Failure is, in a sense, the
highway to success, inasmuch as every discovery of what is
false leads us to seek earnestly after what is true, and every fresh experience
points out some form of error which we shall afterwards
carefully avoid.” Keats.
• Van Hiele: crisis of learning• Productive failure (Kapur)• Impasse (VanLehn et al)• Perturbation (Doll)• Disequilibrium (Piaget)
Formative scenarios
Results
Tentative conclusions
• Indication that crisis: attempts & errors ↓ scores ↑
• Formative scenarios • Higher score pre-test less gain
3rd cycle
• Oct-dec 2010• 9 schools,
around 330 students
• “Algebra met Inzicht” (AmI)
• www.algebrametinzicht.nl
Data collection & analysis
• Scores per module in DME• Pre- and posttest scores• Pre and post questionnaires
Students: attitude, evaluationTeachers: evaluation
• General characteristics• Log files
Excel
Still to come
– Data analysis for 3rd cycle (stat. methods already known from 2nd cycle, e.g. Multilevel MLwin) > feb finished
– (To be) submitted:• ORD2011• PME35• ICTMT10
– One more article to submit to C&E– Dissertation (about half done) > 31/8/11
Future?
http://www.fi.uu.nl/~christianb/downloads/poc_equation.htm
Discussion
– Questions?– Almost every time discussion understandibly
ends with the cut Skills vs. Understanding– Causality– Methodology: what about distance learning?
Can we ‘control’ an uncontrolled (e.g. home) situation?
Selected references
Bokhove, C., & Drijvers, P. (2010). Digital tools for algebra education: criteria and evaluation. International Journal of Computers for Mathematical Learning, 15(1), 45-62. (link)
Bokhove, C., & Drijvers, P. (2010). Symbol sense behavior in digital activities. For the Learning of Mathematics, 30(3), 43-49.
Kilpatrick, J., Swafford, J. & Findell, B. (2001). The Strands of Mathematical Proficiency. In J. Kilpatrick, J. Swafford & B. Findell (Eds.), Adding It Up: Helping Children Learn Mathematics (pp 115-155). Washington: National Research Council.
Sfard, A. (1991). On The Dual Nature Of Mathematical Conceptions: Reflections on Processes and Objects as Different Sides of the Same Coin. Educational Studies in Mathematics 22, 1-36.
Tall, D. (2008). The Transition to Formal Thinking in Mathematics. Mathematics Education Research Journal, 20(2), 5-24.