Title of the Activity s1

LESSON PLAN Best Buy, Best Bargain?

What Students Will Do Background Information  Participate in a controlled experiment to find out which adhesive bandage lasts Teaching Today’s Health, Anspaugh & Ezell, 9th longer. Edition, Chapter 22: Strategies for Teaching  Compare the cost of the adhesive bandage Consumer Health with the length of time the adhesive bandage stays on. “…To chose wisely requires accumulating knowledge and formulating attitudes about different Valued Outcomes kinds of products and services. Students must learn After doing the activities, the student should be that products and services differ in quality, cost, and able to express and illustrate: intrinsic value. They must also recognize how  Infectious diseases originate from advertising and social forces influence ideas about pathogens. needs and desires. Above all, they must understand  It is important to obtain accurate that the responsibility for making wise consumer information concerning health care decisions ultimately is a personal one. …Most products and services. directly health-related products and services include  Many advertising claims are inflated or over-the-counter (OTC) medications, cosmetics and misleading. Advertising seeks to persuade medical and dental treatment…” rather than to inform.  The best way to make wise consumer A controlled experiment is one in which one decisions is to become informed about the variable is manipulated while all others are held as facts concerning products and services. constant as possible. In the experiment the students  Making wise consumer decisions is will do in this activity, the manipulated variable will ultimately a personal responsibility. be the four brands of adhesive bandages. This is the independent variable. The measured variable (dependent variable) will be the length of time the Grade Level Appropriateness: Grades 2–4 bandages stay adhered to the hand. Students should carry on normal activities and not manipulate the Note bandage in any way to cause it to stay on or come This activity will begin on day one and conclude on off. The controlled variables will be that one of four day three. brands of bandages will be placed on the wrist of each child (same location) on the same day and at Materials the same time. Students will record the time of day Four different brands of adhesive bandages to equal the bandage (one adhesive side) no longer adheres one per child. All of the bandages should be of the to the skin and calculate the number of hours it same size and shape. stayed on the hand. At that time, the bandage can be Per groups of four: removed completely. Students should continue 1. One each of four different brands of normal activity including washing hands, etc. On adhesive bandages that have been pre- the third day, most bandages should have come off. marked. This is the day the class data can be collected. For the class: 1. Duplicate a data sheet for each student.

Vocabulary consumer, customer, product, persuade, superficial wound, bacteria, pathogen, controlled experiment

Advance Preparation Label each of the boxes of the four brands of adhesive bandages with a number (1, 2, 3, and 4). With a permanent marker, mark the bandages with the corresponding number from the box (1, 2, 3, or 4). Place the mark on the non-adhesive side of the bandage in the same corresponding spot on all.

Best Buy, Best Bargain? Guiding the Lesson Support Information DAY ONE

Write consumer on word cards or on a white/chalk Some students may recall the term used in reference board and say the word. Ask students to recall ways to food chains where the consumer (animal) eats the they remember it being used. Write or place a word producer (plant) or other animals. The customer card with word customer beneath. Explain that refers to the consumer of the product. Customers are when a person purchases a product, they are people who purchase products from retailers. considered the consumer and/or customer. Point out that what a person purchases becomes his/her product. Invite students to name some products they have purchased lately.

Ask: What are some products that are purchased at a Guide students to consider health related products, pharmacy (drug store)? including over-the-counter (OTC) medications, cosmetics, and medical and dental treatments.

Ask: How can the information on the package be Accept reasonable responses such as the ingredients, helpful to the customer? Elicit reasons why this is directions for use, restrictions, and packaging important. propaganda.

Ask: Might any of the information be misleading? Stress that the misleading information is used to try (yes) Point out that the packaging may not tell the to get the customer to purchase one product rather complete truth. than another product because there are many similar products made by different manufacturers.

Write persuade on the chalk/white board or display Students might identify other ways products or the word card. Explain that the producer of the people use persuasion techniques. product uses words or phrases to persuade or convince the consumer to purchase the product.

Place the bandage packages so that every group of These descriptive words are adjectives or properties four has at least one type of package. Invite students of the bandage. to locate phrases such as “long lasting protection, non-stick pad, water resistant etc.”

Write superficial wound on the chalk/white board Students will easily talk about their cuts and bruises or display the word card. Explain that an adhesive and say they put a band-aid on cuts. Band-Aid is a bandage, such as those in the box, is designed to trade name for the adhesive bandages manufactured protect a cut or break in the skin or superficial by Johnson & Johnson Consumer Companies, Inc. wound.

Discuss reasons why treating a superficial wound Cleaning the wound with soapy water or other helps prevent additional treatment and using an antibacterial agents should precede the use of an adhesive bandage further protects the superficial adhesive bandage. Both agents help prevent further wound from getting infected. Write bacteria and invasion of germs, which are pathogenic microbes pathogen on the chalk/white board or display the such as some types of bacteria. Organisms are living word card. Explain that bacteria are one type of things that, in the right conditions, grow and common microscopic organism that can get into a reproduce. wound and may cause infection. Some bacteria are pathogens. Explain that the body’s immune system protects the body against disease by attacking pathogens

Invite students to read the boxes and identify some of the similar acclamations on the box labels.

Ask: How can we find out which adhesive bandage In a controlled experiment all variables are held provides the longest protection? Invite discussion constant except the one being tested. The about experimental design. Write controlled independent variable is the tested material, event or experiment on the chalk/white board or display the process, and the dependent variable is the variable word card. Explain that in an experiment an event is being measured. (Another example of studied, such as the length of time an adhesive experimenting with independent variables is the bandage stays on the skin to protect a superficial growing of plants from seed. Each of the following wound. All other (independent) variables are could be a controlled independent variable: the type controlled, or held constant, such as the size of the of soil, the amount of water, the material the bandage, when it is put on the skin, and where the container is made of, the intensity of light or the size bandage is placed on the hand. The variable of the seed. The dependent variable may be the measured (dependent) is the length of time the height the plant grows. ) bandage stays on the skin. Explain that the boxes of adhesive bandages are all from different manufacturers but the bandages have similar qualities.

Direct students to recognize the four different You might invite students to vote on the place on brands. Distribute one of each brand of bandage that the hand that is most often subjected to a superficial has been marked with a 1, 2, 3, or 4. Instruct all wound. It is important that students not handle the students in the class to place one adhesive bandage “sticky” side of the strip. Students could also wash on the same place on the hand, such as on the wrist, and dry their hands before they place the strip. Try the space between the thumb and forefinger, the top to control as many variables as possible. of the hand, or around a finger.

Tell students that in a controlled experiment, all Emphasize that normal activities should be carried things must be kept the same. In this experiment the out such as hand washing, sporting events, sleeping, placement of the bandage, and the time of day are etc. and they cannot manipulate the bandage in any all kept the same. The bandage is considered “off” way to keep it on or pull it off. when one side has completely come off. Tell them they will need to know the hour and day.

Distribute the data sheet to record the date and time the bandage was placed on the hand. Be sure they identify all variables that are controlled and which are being tested (Length of time bandage stays on the hand.).

DAY THREE

Collect the data from each group as to the number The Y axis of the graph will need to be adjusted to of hours the bandage stayed on the skin. Students range from 0 to the highest number of hours the should average the number of hours for bandages 1- bandage adhered to the skin. You may need to make 4 respectively. If students don’t know how to do the a transparency to show students how to write in the averaging process, you can direct the mathematics intervals. The intervals must begin with 0 and be or have the students use calculators. Invite them to evenly spaced. A bar graph is used to compare share the activity they were doing when they quantities. noticed the bandage was beginning to peel.

Compare the price of the bandage with the length of To more accurately make a judgment, you may need time it stayed on the skin. Discuss which of the to find the average price of the bandage by dividing bandages were the best or not the best bargain for the cost by the number of bandages in the box. the money spent. Discuss the importance of being wise consumers.

Name______Date______

Best Buy, Best Bargain?

1. Record the date and time when you place the bandage on your hand: Date: ______Time: ______2. Describe the activity you were doing when you noticed it was beginning to come off?______3. How many hours was the bandage on your hand? ______4. In your experiment, what variables were the same?______

Use the graph below for the class data. n n i i k k S S

e e h h t t

n n o o

d d e e y y a a t t S S

e e g g a a d d n n a a B B

s s r r u u o o H H

f f o o

r r e e b b m m u u N N

Bandage # 1 # 2 # 3 # 4

Which bandage do you think is the best bargain?______

Explain why:______

______