LECTURE 0.2 Concept Maps and Materials Taxonomies LECTURE OUTLINE Introduction To Concept Maps/Materials Taxonomies Introduction to a Taxonomy of Materials Concept Map: The Atom A Complete Taxonomy of Materials INTRODUCTION TO CONCEPT MAPS A Conceptualizing/Summarizing/ Organizational Device THE MATERIALS OF THE HUB WATERFALL THE MATERIALS OF THE HUB WATERFALL Sandstone Blocks Black Granite Bricks Aluminum Window Frames Wood Glass Concrete Materials of Hub Waterfall are Natural Synthetic include Wood include Sands tone Granite contains are Cellulos e Rocks is a ar e comprized of Polymer Minerals Concrete Bricks are Glas s Aluminum are Composites are is a is are pr edominantly Ceramic are either Metal WHAT IS A CONCEPT MAP? A concept map is a hierarchical map, which shows the relationship between a series of concepts. Concept maps are visual/spatial representations of ideas and their interrelationships. “Nodes” or “cells” denote concepts. Concepts are linked by arrows to form propositions, which describe the relationship(s) between the concepts. WHAT MAY CONCEPT MAPS BE USED FOR? Concept Map may be may be may be used for used for used for Conceptuali zi ng Knowl edge The Structure of the Atom Summarizati on/ Revi sion may be used for Cl assi fi cati on/ Taxonomies Classifyi ng Materi als Organi zational Tool The Uses of Material s (CRRA Component #1) HOW TO CONSTRUCT A MAP Define the “question” to be answered. Identify the key concepts/ideas. Rank the concepts/ideas from the most inclusive to the most specific/least general. Construct a preliminary map, with the most inclusive concepts at the top of the map, and the least inclusive concepts at the bottom. Enclose each concept in a box to create “nodes” Link concepts/nodes using a combination of arrows and “linking” words. Combinations of concepts, i.e., two nodes and a link, define a proposition. Refine the map. STRUCTURE OF THE ATOM: KEY CONCEPTS Atomic Number Atomic Mass Number Atomic Weight Nucleus Protons: Positive Neutrons: Neutral Electrons: Negative Isotopes Energy Levels Atoms CONCEPT MAP defined by is an average Atomic Weight gives (by difference) the number of Atomic Mass Number Atomic Number ExtraNuclear gives the number of contains called Electr ons Protons are are Neutral Is otopes Positive are Negative distributed in Shells/Energy Levels defines can be Stable defined by Nucleus Neutr ons different nu mb ers yield cons ists of THE ATOM Radioactive Shell Structure/ Electrons /Energy Level/ Electron Configuration gives the number of A MATERIALS TAXONOMY Metals Non-Metals Organic Inorganic Synthetic/Engineered Naturally Occurring Crystalline Amorphous Ceramics Polymers Minerals Rocks Plant/Animal Fiber Fossil Fuels Composites Materials ar e Metallic Non-Metallic are and ar e Inor ganic Or ganic and ar e Crystalline are and ar e are Naturally Occurring ar e Rocks FossilFuels Synthetic and may be and may be Minerals Amorphous Plant/Animal Fiber Metal Ceramic are are combine to Composites Polymer