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.
Wiktionary (0.00 / 0 votes) Rate this definition: functional group (Noun). A specific grouping of elements that is characteristic of a class of compounds, and determines some properties and reactions of that class.functional group (Noun).A collection of organisms of specific morphological, physiological, behavioral, biochemical properties. specific grouping of elements that is characteristic of a class of compounds, and determines some properties and reactions of that class. functional group (Noun). A collection of organisms of specific morphological, physiological, behavioral, biochemical properties.