Author - Elizabeth H
Category - Lesson Plans, Science, Biology, Digestive System
Lesson Plan Duration - 2 hour(s)
Grade Level - 3-5,6-8

Lesson Plan Description

Students will be making models of their own digestive systems by measuring and cutting yarn to represent the lengths of different parts of the system, and then knotting the pieces of yarn together to form one long string.

Primary Learning Objective(s):

Investigate the structure and function of the major organs of various human body systems (Digestive System)

Additional Learning Objective(s):

 

Demonstrate an understanding of the structure and function of human body systems and interactions within and between systems

 

Assess the effects of social and environmental factors on human health, and propose ways in which individuals can reduce the harmful effects of these factors ad take advantage of those that are beneficial

Design and build a model to demonstrate how organs or components of body systems in the human body work and interact with other components

Use appropriate science and technology vocabulary, including circulation, respiration, digestion, organs, and nutrients, in oral and written communication

Describe the basic structure and function of major organs in the respiratory, circulatory, and digestive systems

 

Mathematics - Collect data by conducting a survey or an experiment to do with themselves, their environment, issues in their school or community, or content from another subject, and record observations or measurements

Language Arts - Use stated and implied ideas in texts to make inferences and construct meaning

Procedures/Activities:

 

Engage students in a discussion of why we need food. Lead them to the understanding that food and oxygen provide our cells with the energy they need to function.

 

 

Display the Digestive System transparency and discuss the different parts of the digestive system (Give each student their own copy of digestive system).

 

Explain to students that they will be making models of their own digestive systems by measuring and cutting yarn to represent the lengths of different parts of the system, and then knotting the pieces of yarn together to form one long string.

 

Distribute student record sheets and materials. Read instructions together as a class. Highlight the transparency to demonstrate where students will be measuring. Use colours which correspond to the yarn.

 

Group students into pairs. Have them take turns measuring each other, so that each student has a set of data for his or her own body. (Measuring in centimetres and recording this data on Observation/Record Sheet) Have them cut lengths of yarn which correspond to the digestive organ they are measuring and assemble them (knot them) all together in proper order.

Black Yarn = Mouth

Light Blue Yarn = Esophagus

Pink Yarn = Stomach

Green Yarn = Small Intestine

Navy Blue Yarn = Large Intestine

 

 

Have students answer and complete "Conclusion" section of record sheet.

 

 

 

Once completed, students will have a model of their digestive system. We can review record sheets and discuss the "Conclusion" section.

 

 

 

Clean Up Time. Have students hand in record sheets and their digestive system model (masking tape attached to it with their name) for marking purposes.

Materials/Equipment:

 

-Student record sheets for each student

-Overhead transparency of the Digestive System

-Photocopy of the digestive system for each student

-Measuring tools (rulers, metre sticks, measuring tapes, etc.)

-Yarn (blue, red, green, yellow, and purple)

-Scissors

-Calculators

 

 

Assessment Guidelines:

 

 

Level 1

Level 2

Level 3

Level 4

 

Participation:

 

During Class Discussions

 

 

Collaboration During Group Work.

 

 

 

Limited participation during class discussions.

 

 

Limited coloration during group work. 

 

 

 

Some participation during class discussions.

 

 

Some collaboration during group work.

 

 

 

Considerable participation during class discussions.

 

 

Considerable collaboration during group work.

 

 

 

Active and engaged participation during class discussions.

 

Active and engaged collaboration during group work.

 

 

Observation/Record Sheet

 

 

Extensive missing or incorrect data recorded.

 

Some missing or incorrect data recorded.

 

Few missing or incorrect data recorded.

 

No missing or incorrect data recorded.

 

"Conclusions" Responses

 

 

Expresses and organizes ideas and information with limited effectiveness.

 

 

Expresses and organizes ideas and information with some effectiveness.

 

Expresses and organizes ideas and information with considerable effectiveness.

 

Expresses and organizes ideas and information with a high degree of effectiveness.

 

Model representing the length of Digestive System

 

 

Model assembled with many (5 or more) mistakes.

 

Model assembled with some (3-4) mistakes.

 

Model assembled with few (1-2) mistakes.

 

Model assembled with no (0) mistakes.