# ALEX Lesson Plan

## The Ins and Outs of Digestion

You may save this lesson plan to your hard drive as an html file by selecting "File", then "Save As" from your browser's pull down menu. The file name extension must be .html.

This lesson provided by:
 Author: Shirley Scarbrough Organization: Alabama State University Math-science Pa And Author: Debbie Payne Organization: ResultSearch Consulting And Author: Ruth Liddell System: Informal Education Partner School: Informal Education Partner
General Lesson Information
 Lesson Plan ID: 34310 Title: The Ins and Outs of Digestion Overview/Annotation: In this lesson which emphasizes hands-on, inquiry-based activities, students will create two models of the digestive system and determine the correct placement of various organs of the digestive system. Students will use the model to compare mechanical and chemical digestion. Students will use information provided by the model to explain why food spends various amounts of time in a particular organ. To extend the learning of this module, students will design an experiment to determine the effect of introducing new foods to a baby’s diet.  The module also includes a presentation, a word search puzzle, and a bingo game emphasizing vocabulary words related to the digestive tract.
Associated Standards and Objectives
Content Standard(s):
 Science SC2015 (2015) Grade: 7 Life Science 4 ) Construct models and representations of organ systems (e.g., circulatory, digestive, respiratory, muscular, skeletal, nervous) to demonstrate how multiple interacting organs and systems work together to accomplish specific functions. NAEP Framework NAEP Statement:: L8.1c: All organisms are composed of cells, from one cell only to many cells. About two-thirds of the weight of cells is accounted for by water, which gives cells many of their properties. In multicellular organisms, specialized cells perform specialized functions. Organs and organ systems are composed of cells and function to serve the needs of cells for food, air, and waste removal. The way in which cells function is similar in all living organisms.† NAEP Statement:: L8.1d: All organisms are composed of cells, from one cell only to many cells. About two-thirds of the weight of cells is accounted for by water, which gives cells many of their properties. In multicellular organisms, specialized cells perform specialized functions. Organs and organ systems are composed of cells and function to serve the needs of cells for food, air, and waste removal. The way in which cells function is similar in all living organisms.† Unpacked Content Scientific And Engineering Practices:Developing and Using ModelsCrosscutting Concepts: Systems and System ModelsDisciplinary Core Idea: From Molecules to Organisms: Structures and ProcessesEvidence Of Student Attainment:Students: Construct models demonstrate how multiple systems (including the organs of those systems) function together to serve specific purposes within the human body.Teacher Vocabulary:Model System Tissues Organ Organ System Biological hierarchy (e.g., cells, tissues, organs, etc.)Knowledge:Students know: Biological hierarchy (cells, tissues, organs, organ systems, organisms). Specialized cells make up specialized tissues; specialized tissues make up organs (e.g., the heart contains muscle, connective, and epithelial tissues that allow the heart to receive and pump blood). Major organs of the body systems (e.g., circulatory, digestive, respiratory, muscular, skeletal, nervous). Functions of the body systems. Interacting organ systems are involved in performing specific body functions.Skills: Students are able to: Construct a model or representation that demonstrates how interacting organs and systems accomplish functions. Describe the relationships between components of the model. Use observations from the model to provide causal accounts for events and make predictions for events by constructing explanations.Understanding:Students understand that: The body is a system of multiple interacting subsystems (organ systems). Different organs work together to form organ systems that carry out complex functions (e.g., the heart and blood vessels work together as the circulatory system). The interaction of organ systems are needed for survival, growth, and development of an organism.AMSTI Resources:AMSTI Module: Exploring Body Systems Alabama Alternate Achievement Standards AAS Standard: SCI.AAS.7.4- Label major organs of the human body (e.g., heart, lungs, diaphragm, bones, muscles, stomach, brain, intestines); use a model to demonstrate how organs are connected in an organ system; recognize how organ systems support the survival of humans (e.g., circulatory, respiratory, skeletal, muscular, digestive).

Local/National Standards:

Systems and interactions (8CLS1.4)

Develop descriptions, explanations, predictions, and models using evidence (8ASI1.4)

Primary Learning Objective(s):

• Students will create a model of the digestive system which demonstrates the difference between mechanical and chemical digestion.
• Students will identify the organs of the digestive system and the processes that take place in each organ.
• Students will design an experiment to test a hypothesis pertaining to the introduction of new foods into the diet.