The Science of Healthy Behavior by National Institute of Health. - HTML preview

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Introduction

Implementing the Module

The five lessons in this module are designed to

Setting, Students role-play behavioral scientists

be taught in sequence for approximately eight

in a hospital scenario to investigate the

days as a replacement for a part of the standard

relationships between behavior and health.

curriculum in middle school life science. The

They also develop a behavioral modification

following pages offer general suggestions about

plan to help a fictitious character lower his risk

using these materials in the classroom; you

of heart disease.

will find specific suggestions in the procedures

provided for each lesson.

The final lesson, Behavior Specialists in the

Healthcare Setting ... Again, allows students to

What Are the Goals of the Module?

consider what they have learned in previous

The Science of Healthy Behaviors is designed

lessons. They investigate in detail the many

to help students reach these major goals

influences on a person’s behavior and relate

associated with scientific literacy:

this to the reasons underlying behaviors. The

• to understand a set of basic scientific principles

following two tables illustrate the science

related to the study of behavior and the

content and conceptual flow of the classroom

relationships of behavior to human health;

lessons and activities.

• to experience the process of scientific

inquiry and develop an enhanced

Science Content of the Lessons

understanding of the nature and methods of

science; and

Lesson

Science Content

• to recognize the role of science in society

Lesson 1

What is behavior?; observation

and the relationship between basic science

as a scientific tool

and human health.

Lesson 2

Influences on behavior

Lesson 3

Using a survey as a scientific

What Are the Science Concepts and How

tool

Are They Connected?

The lessons are organized into a conceptual

Lesson 4

Relationship of behavior to

framework that allows students to move from

health; changing behaviors

what they already know about behavior, some of

Lesson 5

Pulling it together: changing

which may be incorrect, to a scientific perspective

behavior as it relates to

on behavior and its importance to science and

influences on and reasons for

to their lives. Students begin by developing their

behavior

own definition of behavior through observations

of human and animal behavior ( Defining

How Does the Module Correlate with the

Behavior). Students then explore the relationship

National Science Education Standards?

between influences on behavior and reasons for

The Science of Healthy Behaviors supports

behavior ( Influences on Behavior).

teachers in their efforts to reform science

education in the spirit of the National Research

An investigation of factors influencing physical

Council’s 1996 National Science Education

activity introduces students to the survey

Standards ( NSES).19 The content of the module

as a tool of behavioral scientists ( Tools of

is explicitly standards based. The chart on

Social and Behavioral Science: The Survey). In

pages 7–9 lists the specific content standards

Behavioral Specialists at Work: The Healthcare

that this module addresses.

5

The Science of Healthy Behaviors

Conceptual Flow of the Lessons

Lesson

Learning Focus*

Major Concepts

Lesson 1

Engage

Behavior is any activity in which an organism engages,

Defining Behavior

Explore

and it can be innate or learned. Behavior is studied by

Explain

behavioral and social scientists. Scientists use a variety

of tools to study behaviors, including observation and

animal models. Some studies occur in the laboratory

while others take place in natural settings. Some studies

examine behavior in individuals while others collect

information about behavior of groups. Understanding

behavior is important because many behaviors have

long- and short-term impacts on health. Improving

health requires an understanding of what behaviors

people engage in, why they engage in them, and what

the health consequences of those behaviors are.

Lesson 2

Explore

Individuals behave in certain ways. Reasons for

Influences on

Explain

behavior originate in various influences. These

Behavior

influences can be classified into general categories,

such as biological, personal, social, or environmental.

Individuals can modify some, but not all, of these

influences.

Lesson 3

Explore

Surveys are important tools for social and behavioral

Tools of Social and

Explain

scientists. Surveys provide quantifiable information

Behavioral Science:

about behaviors and behavior trends and allow

The Survey

scientists to study the relationships among different

influences and behaviors. Survey questions must

be designed carefully to ask very specific questions.

Sample size and a representative sample are critical

to generating useful data from a survey. Different

influences can affect a person’s physical activity levels.

Lesson 4

Elaborate

Health is influenced by factors, some of which we

Behavioral

cannot modify (such as genetics) and some of which

Specialists at Work:

we can control (such as behaviors). Behaviors have

The Healthcare

both positive and negative outcomes on health.

Setting

Behaviors may have both short- and long-term

consequences for health. Behaviors may be modified to

affect health positively.

Lesson 5

Evaluate

Individuals behave in certain ways. Reasons for

Behavioral

behavior originate in various influences. Asking well-

Specialists in the

designed, specific questions is an important tool

Healthcare Setting

of scientists who study human behavior. Modifying

... Again

behavior may be difficult and depends on complex

relationships among many influences in a person’s life.

*See How Does the BSCS 5E Instructional Model Promote Active, Collaborative, Inquiry-Based Learning? on page 9.

6

Content Standards: Grades 5–8

NSES Content Standard

Correlation to The

Science of Healthy

Behaviors

Standard A: As a result of activities in grades 5–8, all students should develop Abilities necessary to do scientific inquiry

• Identify questions that can be answered through scientific investigations.

Lessons 1, 2, 3, 4

• Design and conduct a scientific investigation.

Lessons 2, 3, 4

• Use appropriate tools and techniques to gather, analyze, and interpret Lessons 1, 2, 3, 4

data.

• Develop descriptions, explanations, predictions, and models using

Lessons 1, 2, 3, 4

evidence.

• Think critically and logically to make the relationships between

Lessons 2, 3, 4

evidence and explanations.

• Recognize and analyze alternative explanations and predictions.

Lessons 2, 3, 4

• Communicate scientific procedures and explanations.

Lessons 2, 3, 4

• Use mathematics in all aspects of scientific inquiry.

Lesson 3

Understandings about scientific inquiry

• Different kinds of questions suggest different kinds of scientific

Lessons 1, 2, 3

investigations. Some investigations involve observing and describing

objects, organisms, or events; some involve collecting specimens; some

involve experiments; some involve seeking more information; some

involve discovery of new objects; and some involve making models.

• Different scientific domains employ different methods, core theories,

Lessons 1, 2, 3

and standards to advance scientific knowledge and understanding.

• Mathematics is important in all aspects of scientific inquiry.

Lesson 3

• Asking questions and querying other scientists’ explanations is part of Lessons 2, 3, 4

scientific inquiry.

Standard C: As a result of their activities in grades 5–8, all students should develop understanding of

Structure and function in living systems

• Disease is a breakdown in structures or functions of an organism.

Lesson 4

Reproduction and heredity

• The characteristics of an organism can be described in terms of a

Lessons 2, 4

combination of traits. Some are inherited, and others result from

interactions with the environment.

Regulation and behavior

• All organisms must be able to obtain and use resources, grow,

Lessons 1, 2, 4

reproduce, and maintain stable internal conditions while living in a

constantly changing environment.

• Behavior is one kind of response an organism can make to an internal All lessons or environmental stimulus. Behavioral response is a set of actions

determined in part by heredity and in part from experience.

• An organism’s behavior evolves through adaptation to its environment. Lessons 1, 2

How a species moves, obtains food, reproduces, and responds to

danger is based on the species’ evolutionary history.

7

Implementing the Module

The Science of Healthy Behaviors

NSES Content Standard

Correlation to The

Science of Healthy

Behaviors

Standard F: As a result of their activities in grades 5–8, all students should develop understanding of

Personal health

• Regular exercise is important to the maintenance and improvement of Lessons 3, 4, 5

health.

• The use of tobacco increases the risk of illness. Students should

Lessons 4, 5

understand the influence of short-term social and psychological factors

that lead to tobacco use, and the possible long-term detrimental

effects of smoking and chewing tobacco.

Risks and benefits

• Risk analysis considers the type of hazard and estimates the number

Lesson 3

of people who might be exposed and the number likely to suffer

consequences. The results are used to determine the options for

reducing or eliminating risks.

• Students should understand the risks associated with natural hazards

Lessons 4, 5

(fires, floods, tornadoes, hurricanes, earthquakes, and volcanic

eruptions), chemical hazards (pollutants in air, water, soil, and food),

biological hazards (pollen, viruses, bacterial, and parasites), social

hazards (occupational safety and transportation), and personal hazards

(smoking, dieting, and drinking).

• Individuals can use a systematic approach to thinking critically about

Lessons 2, 3, 4, 5

risks and benefits.

• Important personal and social decisions are made based on

Lesson 2

perceptions of benefits and risks.

• Science influences society through its knowledge and world views.

Lessons 1, 4, 5

Standard G: As a result of activities in grades 5–8, all students should develop understanding of

Science as a human endeavor

• Women and men of various social and ethnic backgrounds—and with

Lessons 1, 4, 5

diverse interests, talents, qualities, and motivations—engage in the

activities of science, engineering, and related fields such as the health

professions. Some scientists work in teams and some work alone, but

all communicate extensively with others.

• Science requires different abilities, depending on such factors as

Lessons 1, 2, 3

the field of study and type of inquiry. Science is very much a human

endeavor, and the work of science relies on basic human qualities,

such as reasoning, insight, energy, skills, and creativity.

• Science also relies on scientific habits of mind, such as intellectual

Lessons 1, 2, 4, 5

honesty, tolerance of ambiguity, skepticism, and openness to new ideas.

8

NSES Content Standard

Correlation to The

Science of Healthy

Behaviors

Nature of science (Content Standard G continued)

• Scientists formulate and test their explanations of nature using

Lessons 1, 2, 3, 4

observation, experiments, and theoretical and mathematical models.

• It is part of scientific inquiry to evaluate the results of scientific

Lessons 2, 3, 4

investigations, experiments, observations, theoretical models, and

the explanations proposed by other scientists. Evaluation includes

reviewing the experimental procedures, examining the evidence,

identifying faulty reasoning, pointing out statements that go beyond

the evidence, and suggesting alternative explanations for the same

observations.

Teaching Standards

Assessment Standards

The suggested teaching strategies in all the

You can engage in ongoing assessment of your

lessons support you as you work to meet the

teaching and of student learning using the

teaching standards outlined in the National

variety of assessment components embedded

Science Education Standards. This module

within the module’s structure. The assessment

helps teachers of science plan an inquiry-

tasks are authentic: they are similar in form to

based science program by providing short-

tasks that students will encounter outside the

term objectives for students. It also includes

classroom or in which scientists participate.

planning tools such as the Conceptual Flow of

Annotations guide you to these opportunities

the Lessons chart (page 6) and the Suggested

for assessment and provide answers to

Timeline for teaching the module (page 18).

questions that can help you analyze student

You can use this module to update your

feedback.

curriculum in response to your students’

interest in this topic. The focus on active,

How Does the BSCS 5E Instructional

collaborative, and inquiry-based learning in the

Model Promote Active, Collaborative,

lessons helps teachers support the development

Inquiry-Based Learning?

of student understanding and nurture a

Because learning does not occur through a

community of science learners.

process of passive absorption, the lessons in

this module promote active learning. Students

The structure of the lessons in this module

are involved in more than listening and

enables teachers to guide and facilitate

reading. They are developing skills, analyzing

learning. All the activities encourage and

and evaluating evidence, experiencing and

support student inquiry, promote discourse

discussing, and talking to their peers about

among students, and challenge students

their own understanding. Students work

to accept and share responsibility for their

collaboratively with others to solve problems

learning. Using the BSCS 5E Instructional

and plan investigations. Many students find that

Model, combined with active, collaborative

they learn better when they work with others

learning, allows teachers to respond effectively

in a collaborative environment than when

to the diversity of student backgrounds and

they work alone in a competitive environment.

learning styles. The module is fully annotated,

When all this active, collaborative learning

with suggestions for how teachers can

is directed toward inquiry science, students

encourage and model the skills of scientific

succeed in making their own discoveries. They

inquiry, as well as foster the curiosity, openness

ask questions, observe, analyze, explain, draw

to new ideas and data, and skepticism that

conclusions, and ask new questions. These

characterize science.

inquiry-based experiences include both those

9

Implementing the Module

The Science of Healthy Behaviors

that involve students in direct experimentation

The Engage phase of this module, found in

and those in which students develop

Lesson 1, Defining Behavior, is designed to

explanations through critical and logical

• pique students’ curiosity and generate

thinking.

interest in learning about behavior;

• determine students’ current understanding

This viewpoint that students are active thinkers

about behavior and the scientific study of

who construct their own understanding out of

behavior;

interactions with phenomena, the environment,

• invite students to raise their own questions

and other individuals is based on the theory

about behavioral and social science and

of constructivism. A constructivist view of

about behavior;

learning recognizes that students need time to

• encourage students to compare their ideas

• express their current thinking;

with the ideas of others; and

• interact with objects, organisms, substances,

• enable teachers to assess what students do or

and equipment to develop a range of

do not understand about the stated outcomes

experiences on which to base their thinking;

of the lesson.

• reflect on their thinking by writing and

expressing themselves and comparing what

Explore

they think with what others think; and

In the Explore phase of the module—Lesson

• make connections between their learning

1, Defining Behavior; Lesson 2, Influences on

experiences and the real world.

Behavior; and Lesson 3, Tools of Social and

Behavioral Science: The Survey—students

This module provides a built-in structure

investigate behavioral and social science and

for creating a constructivist classroom: the

behaviors by using the behavioral and social

BSCS 5E Instructional Model. This model

science tools of observation and surveys and

sequences the learning experiences so that

by exploring factors that influence behaviors.

students have the opportunity to construct

These lessons require students to make

their understanding of a concept over time.

observations, analyze familiar situations from

The model leads students through five phases

a scientific viewpoint, evaluate and interpret

of learning that are easily described using five

data, and draw conclusions. Students

words that begin with the letter E: Engage,

• interact with materials and ideas through

Explore, Explain, Elaborate, and Evaluate. The

classroom demonstrations and simulations;

following paragraphs summarize how the five

• consider different ways to study and

Es are implemented across the lessons in this

understand behavior;

module.

• acquire a common set of experiences with

their classmates so they can compare results

Engage

and ideas;

Students come to learning situations with

• observe, describe, record, compare, and

prior knowledge. This knowledge may or may

share their ideas and experiences; and

not be congruent with the concepts presented

• express their developing understanding of

in this module. The Engage lesson provides

behavior and the scientific study of behavior

the opportunity for teachers to find out what

by using graphs, analyzing and comparing

students already know or what they think

data, analyzing hypothetical situations, and

they know about the topic and concepts to

answering questions.

be developed. It also gives each learner the

opportunity to consider what his or her current

Explain

ideas and thoughts about the topic are. The

The Explain phase provides opportunities for

Engage phase should also capture students’

students to connect their previous experiences

interest and make them curious about the topic

and to begin to make conceptual sense of

and concepts.

the main ideas of the module. This stage also

10

allows for the introduction of formal language,

Evaluate

scientific terms, and content information that

The Evaluate lesson