To help students learn the appropriate text structures, text features, and language of informative/explanatory writing, teachers might begin with Talk-alouds. Below you will see two 2nd grade examples that focuses on the use of diagrams. These are a paired set of a Reading Talk-aloud and a Writing Talk-aloud.
functional group. n. An atom or group of atoms, such as a carboxyl group, in an organic compound that defines the structure of a family of compounds and determines the properties of the family. functional group. n.
Definition of 'functional group'. functional group. functional group in the Pharmaceutical Industry (fÊÅkÊÉnÉl grup) Functional groups are groups of atoms in a compound, such as the hydroxyl group in an alcohol, that determine the chemical behavior of the compound.