1. Qualitative vs. Quantitative
Observations
Qualitative vs. Quantitative

2. Observations
Observation consists of receiving knowledge of the outside world through our senses, or recording information using scientific tools and instruments.

3. Qualitative Observations
Overview:
Deals with descriptions.
Data can be observed but not measured.
Qualitative → Quality
Examples
Colors, textures, smells, tastes, appearance, beauty, etc.

4. Quantitative
Overview:
Deals with numbers.
Data which can be measured.
Quantitative → Quantity
Examples:
Length, height, area, volume, weight, speed, time, temperature, humidity, sound levels, cost, members, ages, etc.

5. Qualitative Elephant Toothpaste Quantitative
Record both Qualitative and Quantitative observations as you watch the preparation of Elephant Toothpaste
Qualitative
Quantitative

6. Elephant Toothpaste Procedures
Measure 125 mL of warm water
Mix ½ oz of dry yeast
Add drops of food color
In a graduated cylinder, measure 20 mL of Hydrogen Peroxide
Add a dash of dish soap
Add yeast mixture to graduated cylinder

7. Classroom Observations
Find two qualitative and two quantitative observations of this classroom
Qualitative
Quantitative