Section 2-2 (cont.) Definitions - PowerPoint PPT Presentation

Loading...

PPT – Section 2-2 (cont.) Definitions PowerPoint presentation | free to download - id: 724bc1-ZWRmM



Loading


The Adobe Flash plugin is needed to view this content

Get the plugin now

View by Category
About This Presentation
Title:

Section 2-2 (cont.) Definitions

Description:

If it is a vehicle that flies, then it is an airplane. True False counterexample: helicopter * * Title: Section 2-2 (cont.) Definitions Author: DPS Last modified by: – PowerPoint PPT presentation

Number of Views:21
Avg rating:3.0/5.0
Slides: 8
Provided by: DPS91
Category:

less

Write a Comment
User Comments (0)
Transcript and Presenter's Notes

Title: Section 2-2 (cont.) Definitions


1
Section 2-2 (cont.) Definitions
2
Definition Activity
  • Work with your surrounding classmates and write
    the definition for a Polyglob.

3
Good Definitions
  • A good definition uses clearly understood terms.
    The terms should be commonly understood or
    already defined.
  • A good definition is precise. Good definitions
    avoid words such as large, sort of, and almost.
  • A good definition is reversible. That means that
    you can write a good definition as a true
    biconditional.

4
Example (Me)
  • Show that this definition of perpendicular lines
    is reversible. Then write it as a true
    biconditional.
  • Definition Perpendicular lines are two line that
    intersect to form right angles.
  • Conditional If two lines are perpendicular, then
    they intersect to form right angles.
  • Converse If two lines intersect to form right
    angles, then they are perpendicular.
  • Biconditional Two lines are perpendicular if and
    only if they intersect to form right angles.

5
Example (We)
  • Definition An airplane is a vehicle that flies.
  • Conditional
  • Converse

If it is an airplane, it is a vehicle that flies.
True
If it is a vehicle that flies, then it is an
airplane.
False counterexample helicopter
6
Example (You)
  • Definition A right angle is an angle whose
    measure is 90.
  • Conditional
  • Converse
  • Biconditional

7
Homework Section 2-2 p.90 s 18-23, 33-37
About PowerShow.com