E3 Lesson Plans

By: Lesley Baker & Shelly Lingo-Ortiz

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

Tools Used

• Colorimeter

• Calculator

• Graph Paper

• Different medias ( for presentations)

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.

Day 6

• Classroom Presentations

Update!

Irradiated chicken…..

Pictures of Chicken

Before we end… you have an

Exit Ticket

References

http://standards.nctm.org/document/index.htm

http://www.tea.state.tx.us/teks/

http://www.food-irradiation.com/artpub.htm