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Digestion and Food

Unit Plan

Digestion and Food

Objectives

In this unit, students will investigate the connections and interdependency between the ecosystem, food, the fiber system, and the digestive system. Students will:

  • identify components of the human digestive system.

  • describe the agricultural (farming) process.

  • identify food and fiber systems.

Essential Questions

  • How do the structures and functions of living things allow them to meet their needs?

  • How does energy change from one form to another as it moves through a system?

  • How does the variation among individuals affect their survival?

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Related Materials & Resources

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Formative Assessment

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    Multiple Choice Items:

    1. This body system allows us to get the nutrients and energy that we need from the food we eat.

    1. cardiovascular

    2. nervous

    3. respiratory

    4. digestive

    2. Which food is a healthy food choice?

    1. SkittlesR
    2. onion rings

    3. apples

    4. meat

    3. Which of the following keeps your digestive system lubricated and running smoothly?

    1. meat

    2. vegetables

    3. grain

    4. water

    4. Which part of the digestive system mainly absorbs water?

    1. stomach
    2. large intestine
    3. small intestine
    4. colon

    5. Which item best describes the process of tilling in agriculture?

    1. preparing the soil to take the seeds
    2. collecting crops from the soil, vine, or stalk
    3. using underground river water for crops
    4. scattering or throwing seeds on the ground to grow

    Multiple Choice Answer Key:

    1. D

    2. C

    3. D

    4. B

    5. A

    Short Answer Items:

    Match the vocabulary word with the correct definition.

    1. sowing
    2. farm
    3. harvest
    4. soil
    5. crop
    6. ______________________ collection of crops from the soil, vine, or stalk
    7. ______________________ a plot of land devoted to the raising of animals livestock as well as agriculture
    8. ______________________ fruits and vegetables grown on the farm
    9. ______________________ surface layer of earth supporting plant life
    10. ______________________ to scatter or throw seeds on the ground to grow

    Short-Answer Key:

    6. C 7. B 8. E 9. D 10. A

    Essay:

    Using all the vocabulary words in the word bank, explain the digestive process from start to finish. Also, explain why healthy food choices are important to the digestive system.

    Word Bank

    stomach mouth large intestine
    small intestine nutrients chew
    esophagus
    ________________________________________________________________________________________________________________________________________________________________________________________________________________________________________________________________________________________________________________________________________________________________________________________________________________________________________________________________________________________________________________________

    Essay Rubric:

    Points

    Description

    3

    • Student explains the digestive process using all 7 vocabulary terms correctly and in order.

    • Explanation of healthy food choices is correct and addresses one of the following concepts: Healthier foods are easier to digest; promote better digestion; don’t build up toxins; provide healthier energy; and provide vitamins, minerals, and nutrients the body needs.

    2

    • Student explains the digestive process using 4-6 vocabulary terms correctly and in order.

    • Explanation of healthy food choices is correct.

      or

    • Student explains the digestive process using all 7 vocabulary terms correctly and in order.

    • Explanation of healthy food choices is incorrect.

    1

    • Student uses fewer than 4 words correctly in the description.

    • Explanation of healthy food choices is incorrect.

    0

    • Student does not understand or attempt to complete the assignment.

    Performance Assessment:

    Design an advertisement for your school to encourage other students to make healthier food choices. A current food pyramid can be printed for students here: (S-4-4-1_Food Pyramid.pdf).
    Directions:
    1. Create a poster comparing the USDA Food Pyramid with a personal food pyramid created from one week’s worth of meals (breakfast, lunch, dinner, and snacks)
    2. Track all food eaten throughout the week (Monday through Sunday). Use the Food Group handout as a resource to help differentiate between food groups (S-4-4-1_Food Groups.pdf)
    3. At the end of the week, calculate how much of each food group was eaten and create a personal food pyramid in a similar fashion to the current USDA model.
    4. Display both the USDA Food Pyramid and the personal pyramid on the same poster.
    5. On the poster, list what food groups aligned with the USDA model and what food groups did not.
    6. Create a dietary plan to improve food choices for the following week.

    Performance Assessment Scoring Rubric:

    Points

    Description

    5

    All requirements must be completed for full credit:

    • Food pyramid accurately reflects diet track sheet.

    • Food pyramid is neatly drawn and colored.

    • Alignments to the USDA model have been made and displayed on the poster in a clear manner.

    • A list of food groups that did not align to the USDA model are displayed on the poster in a clear manner.

    • Dietary plan includes modification to the student’s food pyramid, which will lead to healthier food choices

    4

    • Student completes 4 of the 5 requirements.

    3

    • Student completes 3 of the 5 requirements.

    2

    • Student completes 2 of the 5 requirements.

    1

    • Student completes 1 of the 5 requirements.

    0

    • Student does not understand the assignment or attempt to complete the assignment.
DRAFT 11/16/2010
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