Disciplinary Core Ideas from the
NRC Framework
. Students are expected to develop
understanding of the relationship between sound and vibrating materials as well as between the
availability of light and ability to see objects. The idea that light travels from place to place can
be understood by students at this level through determining the effect of placing objects made
with different materials in the path of a beam of light. Students are also expected to develop
understanding of how plants and animals use their external parts to help them survive, grow,
and meet their needs as well as how behaviors of parents and offspring help the offspring
survive.
.