K-12 Teaching and Learning From the UNC School of Education

Important Announcement about Online Courses and LEARN NC.

Important Message about LEARN NC

LEARN NC is evaluating its role in the current online education environment as it relates directly to the mission of UNC-Chapel Hill School of Education (UNC-CH SOE). We plan to look at our ability to facilitate the transmission of the best research coming out of UNC-CH SOE and other campus partners to support classroom teachers across North Carolina. We will begin by evaluating our existing faculty and student involvement with various NC public schools to determine what might be useful to share with you.

Don’t worry! The lesson plans, articles, and textbooks you use and love aren’t going away. They are simply being moved into the new LEARN NC Digital Archive. While we are moving away from a focus on publishing, we know it’s important that educators have access to these kinds of resources. These resources will be preserved on our website for the foreseeable future. That said, we’re directing our resources into our newest efforts, so we won’t be adding to the archive or updating its contents. This means that as the North Carolina Standard Course of Study changes in the future, we won’t be re-aligning resources. Our full-text and tag searches should make it possible for you to find exactly what you need, regardless of standards alignment.

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Resources tagged with subtraction are also tagged with these keywords. Select one to narrow your search or to find interdisciplinary resources.

Candy math
Unit on reviewing Math skills. The unit will take 20 minutes per day for 6 days. A good activity for late spring.
Format: lesson plan (grade K–1 Mathematics)
By Tammy Sharpe.
Domino fractions
This is a review activity on the lesson of adding and simplifying fractions. This activity will provide a new approach to seeing a fraction and simplifying it, and the activity will allow students to set up and solve equations. This activity also works for subtraction of fractions.
Format: lesson plan (grade 5 Mathematics)
By Angelica Young.
Everyday, ordinary Olympics
Students will use a stopwatch to time themselves performing in various events, record data, and then compare and order decimals to determine bronze, silver and gold medal winners.
Format: lesson plan (grade 4–5 Mathematics)
By Linda Hill-Wise.
Football math
Students will calculate team yardage in a football game using sign numbers.
Format: lesson plan (grade 7–12 Mathematics)
By John Keith.
Join them together/Take them away
The teacher will introduce beginning addition concepts of joining two sets together. The teacher will introduce beginning subtraction concepts of taking away from a set.
Format: lesson plan (grade K Mathematics)
By Vickie Hedrick.
Let's trade (regrouping to subtract)
This word (trade) will introduce regrouping to subtract by allowing students to "trade" manipulatives to regroup.
Format: lesson plan (grade 1–2 Mathematics)
By Sarah Cole.
Making change
Students will use plastic coins and paper bills to practice making change with a partner.
Format: lesson plan (grade 2 and 4–5 Mathematics)
By Carol Livingston.
Making change to $1.00.
In this lesson students will work in small groups making change to $1.00 using coins and pictures of items priced from Sunday fliers. In advance the teacher will cut out pictures of items costing less than $1.00.
Format: lesson plan (grade 2 Mathematics)
By Julie Hohns.
Stockbrokers: Adding and subtracting integers
In CareerStart lessons: Grade seven, page 2.8
In this lesson for grade seven, students will learn about the careers of stockbrokers, and will attempt to quickly solve the kinds of problems stockbrokers must solve every day.
Format: lesson plan (grade 7 Mathematics)
By Peggy Dickey and Barbara Turner.Adapted by Sharon Abell.
Subtraction sticks
Using craft sticks, students will practice subtraction of 2 and 3 digit numbers with renaming.
Format: lesson plan (grade 2–3 Mathematics)
By Susan Fry.

Resources on the web

Balancing
In this lesson, the fourth of a six-part unit from Illuminations, students are encouraged to explore another model of subtraction—the balance. This model leads naturally to recording with equations. Students use actual and virtual pan balances in... (Learn more)
Format: lesson plan (grade 1–2 Mathematics)
Provided by: Illuminations
Balancing equations
This lesson, one of a six-part unit from Illuminations titled “How Many More Fish?,” encourages students to explore another meaning for operations of subtraction, the balance. This meaning leads naturally to recording with equations. The students... (Learn more)
Format: lesson plan (grade K–2 Mathematics)
Provided by: Illuminations
Begin with buttons: Looking back and moving forward
This Illuminations lesson is the last of an eight-part unit titled “Begin With Buttons.” In this lesson, students review the work of the previous lessons through a variety of activity stations, one of which involves using an interactive website.... (Learn more)
Format: lesson plan (grade K–2 Mathematics)
Provided by: Illuminations
Block pounds
In this lesson from Illuminations, students explore the use of variables as unknowns as they solve for the weights of objects using information presented in pictures. They also model situations that involve the addition and subtraction of whole numbers,... (Learn more)
Format: lesson plan (grade 1–2 Mathematics)
Provided by: Illuminations
Combining foods
In this lesson, the fourth of a six-part unit from Illuminations titled “Food Pyramid Power,” students explore addition and comparison subtraction by modeling and recording related addition and subtraction facts for a given number. The students... (Learn more)
Format: lesson plan (grade K–2 Healthful Living and Mathematics)
Provided by: Illuminations
Comparing connecting cubes: Looking back and moving forward
This lesson, the last of a six-lesson unit from Illuminations, reviews the work of the previous lessons and suggests a framework for summative assessment. Students use the mathematical knowledge and skills developed in the previous lessons to demonstrate... (Learn more)
Format: lesson plan (grade 1–2 Mathematics)
Provided by: Illuminations
Comparing sets
In this lesson, the second of a six-part unit from Illuminations, a children's book sets the stage for encouraging students to review counting back. Students write subtraction problems and model them with cubes. They then compare sets and record differences... (Learn more)
Format: lesson plan (grade K–2 Mathematics)
Provided by: Illuminations
Counting back
This lesson, one of a six-part unit from Illuminations titled “How Many More Fish?,” students count to compare plates of fish-shaped crackers then record the comparison in vertical and horizontal format. They apply their skills of reasoning... (Learn more)
Format: lesson plan (grade K–2 Mathematics)
Provided by: Illuminations
Counting back and counting on
In this lesson, the first of a seven-part unit from Illuminations, students model subtraction with connecting cubes while the teacher reads to them from counting books. Then students make a train of connecting cubes and write in vertical and horizontal... (Learn more)
Format: lesson plan (grade K–2 Mathematics)
Provided by: Illuminations
Counting back and counting on
This lesson, one of a six-part unit from Illuminations titled “Links Away,” focuses on the counting model for subtraction. Students model numbers as a counting book is read. They then make a chain of links and write in vertical and horizontal... (Learn more)
Format: lesson plan (grade K–2 Mathematics)
Provided by: Illuminations