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Biological and Agricultural Engineering
Research Project: Irradiated Chicken
By: Dr. Rosana Moriera & Elena Perez-Castell
Also: Paulo C.F. Da Silva, Jaejoon Han, Nont Ekpanyaskun, Jongsoon Kim, Carmen Gomes, Oscar Rodriguez
TEKS Involved
Mathematics
8th grade
Algebra I
Algebra II
Pre-Calculus
Mathematical Models with Applications
Science
Biology
Chemistry
Physics
NCTM Standards
Number and Operations Algebra
Geometry Measurement
Data Analysis & Probability
Problem Solving Communication
Connections Representations
Overview of Lesson
• Day 1– Activity 1: Preparation of Apples– Activity 2: Learn to use Colorimeter– Activity 3: Understand Measurement
Techniques
• Day 2– Activity 1: Gather Apple Information– Activity 2: Statistical Analysis
Overview continued…
• Day 3– Activity 1: Gather Apples Information– Activity 2: Graphical Representations
(box and whisker plots)
• Day 4– Activity 1: Gather Apples Information– Activity 2: Graphical Analysis
(scattered plots)
Overview continued…
• Day 5– Activity 1: Gather Apples Information– Activity 2: Put Information Together &
Draw Conclusions
• Day 6– Classroom Presentations
Project
Will the apples overall quality, color, and odor change under UV florescent lights?
How is this related to irradiation?
• UV rays penetrate the apple’s skin turning it shades of brown
• Students are able to answer sensory analysis surveys qualitatively
Day 1
• Warm-up– Show students the radiation and irradiation
signs
• Activity 1– Have the class prepare their apples
• Activity 2– Teach students how to use the colorimeter
• Activity 3– teach students how they are going to use the
sensory analysis surveys to judge the apples
Day 2• Warm up
– Read an article on irradiation and discuss its importance
http://www.food-irradiation.com/artpub.htm
• Activity 1– Collect data
• Sensory analysis survey• Colorimeter
• Activity 2– Provide information from the chicken
irradiation sensory analysis testing do to statistical analysis (mean, median, mode, range)
Day 3
• Warm up– Review with students and discuss the
importance of statistical analysis• Activity 1
– Collect data• Sensory analysis survey• Colorimeter
• Activity 2– Using the same information from the chicken
irradiation and much of the information from Day 2 the students are to make box-and-whisker plots
Day 4
• Warm up– Draw a box and whiskers plot and
label its five parts.
Activity 1– Collect data
• Sensory analysis survey• Colorimeter
• Activity 2– Groups will create a scatter plot of
their colorimeter readings.
Day 5• Warm up
– Students will be given a graph of a scatter plot. They will then draw conclusions about this graph.
• Activity 1 – Collect data
– Sensory analysis survey– Colorimeter
• Activity 2– Students will be given data to make a
bar graph.– Students will start group project.
References
http://standards.nctm.org/document/index.htm
http://www.tea.state.tx.us/teks/
http://www.food-irradiation.com/artpub.htm