# ALEX Lesson Plan

## Converting Numbers from Base 10 to Binary, Octal, and Hexadecimal

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This lesson provided by:
 Author: Morgan Boyd Organization: Retirement
General Lesson Information
 Lesson Plan ID: 35679 Title: Converting Numbers from Base 10 to Binary, Octal, and Hexadecimal Overview/Annotation: The lesson will develop knowledge for other bases besides base 10. The lesson will investigate base 2, base 8, and base 16. The student will write numbers using expanded notation.This lesson results from the ALEX Resource Gap Project.
Associated Standards and Objectives
Content Standard(s):
 Mathematics MA2015 (2016) Grade: 9-12 Discrete Mathematics 4 ) Convert between base ten and other bases. (Alabama)

Local/National Standards:

Primary Learning Objective(s):

The student will be able to convert numbers from base 10 to base 2, base 8, and base 16.

The student will be able to write numbers of different bases in expanded notation.

Preparation Information
 Total Duration: 61 to 90 Minutes Materials and Resources: PencilNotebookCalculatorVideos to explore for base 2, base 8, and base 16:Worksheets to be copied for all students:Accelerated students: Copy as neededhttp://east82.com/howto/ip_addressing/docs/Conversion_Worksheet.pdfBell Ringer Exponents in the attachmentsExit slip conversions in the attachments (copy for all students) Technology Resources Needed: Desktop Computer with access to interactive whiteboardVideos to explore for base 2, base 8 and base 16Worksheet to be copied for all students:Accelerated students: Copy as neededhttp://east82.com/howto/ip_addressing/docs/Conversion_Worksheet.pdf Background/Preparation: Teacher:The teacher needs to preview the videos. The teacher needs to have knowledge of binary, octal, and hexadecimal languages. Student:The student needs prerequisite knowledge of place value and how exponents are used with bases. The student needs to recall expanded notation from previous years.
Procedures/Activities: