Two types of Observation Qualitative – Quality – like your senses Quantitative – n for numbers
1. QUALITATIVE OBSERVATIONS Hard to measure Describes the qualities of something Color Taste Sound Texture **Facts not opinions. More note taking will continue “I notice ____” “I see ______”
2. QUANTITATIVE OBSERVATIONS MATHEMATICAL ASPECT Can be expressed in numbers Can be counted or measured More to come in later lesson! More notes
Qualitative vs Quantitative Data Qualitative Data Overview: Deals with descriptions. Data can be observed but not measured. Colors, textures, smells, tastes, appearance, beauty, etc. Qualitative → Quality Quantitative Data Deals with numbers. Data which can be measured. Length, height, area, volume, weight, speed, time, temperature, humidity, sound levels, cost, members, ages, etc. Quantitative → Quantity 4
Qualitative Observations Hard to measure Describes the qualities of something Color - blue and white dress Taste - sour and bitter lemon Sound - blaring horn
Quantitative Observations Can be expressed in numbers Can be counted or measured Amounts Temperature - 93 ℉ Mass - 134 grams Length - 3 yards Allow us to communicate specifics Tools are used to communicate data Observations are collected in data tables
*red/green color, gold frame *smells old and musty Example 1: Oil Painting Qualitative data: *red/green color, gold frame *smells old and musty *texture shows brush strokes of oil paint *peaceful scene of the country *masterful brush strokes Quantitative data: *picture is 10" by 14” with frame 14" by 18” * weighs 8.5 pounds surface area of painting is 140 sq. in. *cost $300 7
Example 3: 6th grade Class Qualitative data: *friendly demeanors *civic minded *environmentalists *positive school spirit Quantitative data: *672 students *394 girls, 278 boys *68% on honor roll *150 students accelerated in mathematics 8
Example 2: Latte(Coffee) Qualitative data: *robust aroma *frothy appearance * strong taste *glass cup Quantitative data: *12 ounces of latte *serving temperature 1500 F. *serving cup 7 inches in height *cost $4.95 9
Make one qualitative observation about the picture above. Explain why it is a qualitative observation. Make one quantitative observation about the picture above. Explain why it is a quantitative observation. 10
Make one qualitative observation about the picture above. Explain why it is a qualitative observation. Make one quantitative observation about the picture above. Explain why it is a quantitative observation. 11