Type:

Other

Description:

In this activity, learners investigate the touch sensory system and discover how to plan and carry out their own experiments. In "CLASS EXPERIMENT," learners find that the ability to tell that two points rather than just one are pressing on the skin depends on two things: the density of skin sensory receptors and the connections that the sensory nerve cells make in the brain. They learn basic facts about sensory receptors and nerve connections, and use their estimates of receptor density to predict the size of the brain areas devoted to input from different skin regions. In "TRY YOUR OWN EXPERIMENT," learners design their own experiments, investigating, for example, how touch information is important in motor tasks, or whether additional sensory input can interfere with two-point discrimination. This lesson plan includes background information and guides for educators and learners. Note: total learning time may be reduced if the number of skin areas tested are limited and you restrict the materials in the second part of the activity.

Subjects:

  • Mathematics > General
  • Education > General

Education Levels:

  • Grade 1
  • Grade 2
  • Grade 3
  • Grade 4
  • Grade 5
  • Grade 6
  • Grade 7
  • Grade 8
  • Grade 9
  • Grade 10
  • Grade 11
  • Grade 12

Keywords:

Data Analysis,Psychology,Data Representation,Biological science,nerve cells,brain,neurons,Problem Solving,skin,touch,Mathematics,Hearing,Smell,Social Sciences,tactile,Communicating Results,Perception,Upper Elementary,receptors,Human Senses and Perception,NSDL,Muscles and Skin,High School,central nervous system,Gathering Data,Life Science,General science,Elementary School,Human Body,axons,Informal Education,senses,Middle School,Formulating Explanations,Data Analysis and Probability,Cells,The Scientific Process,The Brain and Nervous System,Data Collection,Health/Medicine,General,Conducting Investigations,neuroscience,Vision,somatosensory cortex,Probability,oai:nsdl.org:2200/20110926134426380T,NSDL_SetSpec_ncs-NSDL-COLLECTION-000-003-112-056,Science and society,Measurement,Touch,Education,tactile sensory receptor,Asking Questions,Cell Structure and Function

Language:

English

Access Privileges:

Public - Available to anyone

License Deed:

Creative Commons Attribution Non-Commercial Share Alike

Collections:

None
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