1. Inference
Inference: A judgment using prior knowledge that explains an observation.
Could be called an opinion; not always true!
Examples:
I saw Jake yawn; therefore, he is tired
It is sunny, so it must be hot outside.
Object 3 rolled, so it must be a bouncy ball.

2. Observation Observation: describing something using your five senses.
Another word for a fact. You can not dispute an observation; it is true.
Examples:
The sky is blue.
It is sunny out.
The item in container 3 weighed 5 grams.

3. Observation Types Qualitative Quantitative
Observations that use your senses.
Qualitative = Quality (describes)
The tree is red
The grass is green
Observations that use numbers.
Quantitative = Quantity (measures)
The tree has 15 apples
There are 34 desks in this room

4. Qualitative or Quantitative?
Consider the following statement and determine if it is a qualitative observation or a quantitative observation.
There are 12 dogs in that house.

5. Qualitative or Quantitative?
Consider the following statement and determine if it is a qualitative observation or a quantitative observation.
The dog is a golden retriever.

6. Qualitative or Quantitative?
Consider the following statement and determine if it is a qualitative observation or a quantitative observation.
Megan has 3 big teeth.

7. Qualitative or Quantitative?
Consider the following statement and determine if it is a qualitative observation or a quantitative observation.
An elephant has two tusks.

8. Qualitative or Quantitative?
Consider the following statement and determine if it is a qualitative observation or a quantitative observation.
An elephant’s tusks are white.

9. Qualitative Observation
Write one qualitative observation.

10. Quantitative Observation
Write one quantitative observation.