|Lesson Title:||The Good, The Bad, The Integers!|
|Technology Strand:||Societal Issues|
|Essential Question:||How do I add integers?|
|Activity Summary||This lesson involves teaching students how to begin adding integers. It focuses on the differences between positive and negative integers.|
1.01 Develop number sense for negative rational numbers.
3.01 Select and use responsibly a variety of computing devices (e.g., probeware, handhelds, digital cameras, scanners) to collect, analyze and present content area information.
To activate students' prior knowledge of a concept, idea, or skill
The First Word is a variation on traditional acronyms. Teacher will give them the word "INTEGER", and they will have to brainstorm other words that begin with a letter in that word. (Example: The "N" in "INTEGER" could be the start of the word, "Negative")
Download and print the First Word.doc. Distribute the worksheets to the students. Students will work in small groups of three. Students will be assigned the word "INTEGER". They will have to come up with words or phrases beginning with each letter in that word that relates to integers.
|Detailed Technology Instructions:|
|Cognitive Teaching Strategies|
1. Download and print the integers.doc for use with Learning Center #3.
2. Each student will be given a math journal to record their responses at all centers. They can also use the journals to record instructions for each center as well.
3. Divide students into six small groups. Teacher will need to have two of each type of center set up. Assign students an odd or even number. Student will rotate based on whether they are odd or even. Have groups of 6 rotating with each other. At each center, students will be required to solve an integer problem with a variety of technology tools at each center.
CENTER 1 -- VIRTUAL MATH CENTER:
Teacher will need to explore the website, http://nlvm.usu.edu/en/nav/vlibrary.html. Three computers are recommended for this center.
Students will create a number line at this center and explore the relationship between positive and negative integers. See instructions for this activity by clicking on the Parent/Teacher icon at top of the activity page.
1. Go to Google. Do a search by keying in the words, virtual math manipulatives. 2. Click on National Library of Virtual Manipulatives. 3. Select the "Grades 3-5" square in the "Number and Operations" row.
4. Select the "Number Line Bounce" activity from the Table of Contents.
5. Before beginning each problem, select Number Line Bounce.
6. Manipulate the number line to explore positive and negative integers.
CENTER 2 -- "SHOP TIL YOU DROP”:
Teachers will need to collect advertisements in the newspaper prior to teaching this lesson. They will also need to collect rebates for the products advertised. Teachers will then set up a table in the class with calculators, gathered advertisements and rebates.
In this center, students will explore the wonderful world of positive and negative integers. Students will look through sale papers and decide on what they will purchase with a $200.00 budget. Students need to spend as close to $200.00 as possible. They will be required to purchase at least two items that have rebates. Students will need to record final purchases and mathematical computations in their math journals. Repeat buying process if time allows. Record second shopping experience in math journal as well. Choose different items to purchase on second shopping trip.
CENTER 3 -- THE GOOD, THE BAD, THE INTEGERS!:
Teacher will need to have white and black construction paper cowboy hats with integers recorded on them, preferably laminated. You will need to have TI-83 calculators. Make sure that the white cowboy hats = positive integers and that the black cowboy hats = negative integers.
In this center, students will add integers with positive and negative signs using the “Cowboy Hat” method. For example if a student has a white cowboy hat with a positive 10 on it and takes a black cowboy hat with a negative 2 on it, they will solve 10 + (-2) which is a positive 8.
Positive integer + Positive integer = Positive integer
Negative integer + Positive integer = Negative integer (if the negative sign is on the higher of the two numbers)
Negative integer + Positive integer = Positive integer (if the positive sign is on the lower of the two numbers)
Complete the following problems with the “Cowboy Method”. Record results in the math journal.
1. 8 + (-2) =
2. 10 + 4 =
3. 11 + (-4) =
4. 20 + (-5) =
5. 125 + 25 =
6. 128 + (-34) =
7. 135 + (-36) =
8. 50 + 69 =
9. 25 + (-79) =
10. 60 + 29 =
Students must show all work in their math journals.
1. Download and print enough copies of the Exit Slips.doc to distribute to the students.
2. Teachers will give students 5-10 minutes at the end of class to write one sentence explaining what they learned today.
3. Teacher takes up these exit slips as students leave.
4. Teacher grades the exit slips to evaluate the students' participation.
Click for directions on how to download files on a Windows computer.
Microsoft Word Files
Black and White Construction Paper
Magic markers and pencils
|Re-teaching and Enrichment Activities|
|Have students create games that will help them review the addition of integers.|
|Jamestown Middle, Data last modified: 11/27/2005|