young children can have language without understanding but will not be able to use it effectively
sensorimotor stage children start to speak
logical thinking at concrete operational stage
sapir-whorf hypothesis
thinking depends on language
language determines thought
language influences thinking
von frisch's bee study AMRC
aim- to understand bee's communications
method- put food close to hive and far away, observe bees 6000 times over 20 years
results- round dance: to show pollen less than 100 metres away, waggle dance: points direction, 60% of bees went to sources at the distance indicated by the dances
conclusion- sophisticated communication system
von frisch's bee study evaluation
good scientific value, opened eyes to capabilities of animals
reductionist, didn't state anything to do with sound
function of animal communication
survival
reproduction
territory
food
properties of human communications not present in animal communications
plan ahead and discuss future events
creativity
human language expressed using many channels (spoken, written, sign etc) , animals tend to communicate with one channel
