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Grade:
MiddleSubject:
Mathematics |

Posted Tue Jul 20 14:46:32 PDT 2004 by nancytavarez (nancytavarez@aol.com).

paterson, new jersey

Materials Required: computer,

Activity Time: 80 minutes

Concepts Taught: number system, number base

Topic: Number BasesObjectives:

To understand various number system and how they are used

To become familiar with common bases that are used by decimal, binary, octa and hex numbers systems

To make a presentation about one of the number systems

To use the internet to research a topic

To perform basic mathematical computationGrade Level: Eighth Grade

Curriculum Area:

CCCS 4.1 A1 -- Exponents, 4.1 A5 -- Finding Equivalent Forms, 4.1-B2 Numerical operationsInternet Proficiency: Intermediate -- use websites

Summary of Project:

The student will work in partners to develop an understanding of how number systems are based on different bases. The students will use a conversion table from an internet site to find equivalent forms. They will check the answer obtained from the internet conversion table by performing the mathematical computation required. Finally, they will make a short presentation on one of the number system (binary, decimal, octa, hex) explaining why the number system where developed and how does it relate to the decimal system.Assessment:

Exercise sheet, use of internet, partner work, presentationSuggested Web Sites:

Google -- search engine

Conversion table -- (http://www.terra.cc.oh.us/dlm270/session1.htm),

Numeration System http://www.macdonald.egate.net/CompSci/Pascal/hnumeration.html)

Other Number Bases

http://www.scism.sbu.ac.uk/jfl/otherbits/hexdemo2.html