Chapter+4+-+Place+Value+on+the+Horizon

Please take the time to read Chapter 4 - Place Value on the Horizon. The follow up discussion for the reading will involve responding to questions and thoughts from the chapter. In addition to responding to the questions/thoughts posed, please feel comfortable to responding to your colleagues responses. All responses should be placed under the question, that way all responses are on one page.

The discussion board has 4 questions/thoughts for you to respond to for Chapter 4.


 * Big Ideas and Understandings of Chapter 4:**
 * Develop an understanding of our number system parallels the historical development of number systems


 * Symbol usage moves from tallies, to groups, to numerals - from additive systems to multiplicative systems


 * The importance of zero and unitizing


 * Packing contexts


 * Vocabulary to be familiar with:**
 * Iconic Representation
 * Cardinality
 * Numerals
 * Additive Systems
 * Total Quanity
 * Multiplicative Systems
 * Symbolizing
 * Unitizing
 * Tagging
 * Synchrony
 * Hierarchical Inclusion

Attached is a Power Point developed by Mary Lavin. It provides an overview of Chapter 4 and has been a resource for the development of the discussion for Chapter 4.