## Glossary: Module 3

```
*all informal definitions are based on
my own experience and knowledge
```

## Term*: **Deductive Reasoning*

* Informal Definition:* drawing a conclusion based on

observations or statements

A good example of deductive reasoning is watching how

a detective works. He collects clues and then draws a conclusion

based on the clues he collects.

*Formal Definition:*

To arrive at a conclusion using facts, definitions, rules, or properties

Definition from: http://www.icoachmath.com

*Example of Deductive Reasoning:*

Example from: http://www.thatquiz.org

### Term: *Inductive Reasoning*

* **Informal Definition: *

Coming to a conclusion based on general conclusions

You take specific information and draw general

conclusions

*Formal Definition:*

Mathematical induction is a method generally used to prove

or establish that a given statement is true for all natural numbers

Definition from: http://www.icoachmath.com

*Example of Inductive Reasoning:*

Example from: http://www.thatquiz.org

### Term: *Operation*

* Informal Definition*:

An activity that works to change numbers

*Formal Definition:*

a mathematical process applied to solve a problem

Definition from: http://www.icoachmath.com

*Examples of Operation:*

Examples from: http://www.kathimitchell.com

and http://blog.biguniverse.com

Jennifer,

Your informal definitions are very kid friendly and the formal versions are direct and to the point. I love the addition of the graphics and if I were one of your students I’d definitely use this glossary.

Pat