English Language Arts and Literacy | Grade : 4
Strand - Reading Informational Text
Cluster - Key Ideas and Details
[RI.4.3] - Explain events, procedures, ideas, or concepts in a historical, scientific, mathematical, or technical text, including what happened and why, based on specific information in the text.
[4.PS.4.1] -
Develop a model of a simple mechanical wave (including sound) to communicate that waves (a) are regular patterns of motion along which energy travels and (b) can cause objects to move. Clarification Statement: Examples of models could include diagrams, analogies, and physical models.
State Assessment Boundary: Interference effects, electromagnetic waves, or non-periodic waves are not expected in state assessment.
[4.PS.4.2] -
Develop a model to describe that light must reflect off an object and enter the eye for the object to be seen. State Assessment Boundary: Specific colors reflected and seen, the cellular mechanisms of vision, angles of incidence and reflection, or how the retina works are not expected in state assessment.
[4.PS.4.3] -
Develop and compare multiple ways to transfer information through encoding, sending, receiving, and decoding a pattern.*
Clarification Statement: Examples of solutions could include drums sending coded information through sound waves, using a grid of 1s and 0s representing black and white to send information about a picture, and using Morse code to send text.