6533b835fe1ef96bd129fd16
RESEARCH PRODUCT
ELASTIC WAVES: MENTAL MODELS AND TEACHING/LEARNING SEQUENCES
G Tarantinosubject
PhysicsSequenceSuperposition principleWave propagationGroup (mathematics)Simple (abstract algebra)CalculusContext (language use)Mechanical waveSimulationPulse (physics)description
In last years many research studies have pointed out relevant student difficulties in understanding the physics of mechanical waves. Moreover, it has been reported that these difficulties deal with some fundamental concepts as the role of the medium in wave propagation, the superposition principle and the mathematical description of waves involving the use of functions of two variables. In the context of pre-service courses for teacher preparation a teaching/learning (T/L) sequence based on using simple RTL experiments and interactive simulation environments aimed to show the effect of medium properties on the propagation speed of a wave pulse, has been experimented. Here, preliminary results of investigations carried out with a 120 traineeteacher (TT) group are reported and discussed.
| year | journal | country | edition | language |
|---|---|---|---|---|
| 2006-01-01 |