CK-12 Foundation
Ck 12: Arithmetic: Addition of Rational Numbers
[Free Registration/Login may be required to access all resource tools.] Represent sums and differences on a number line and add and subtract rational numbers.
Better Lesson
Better Lesson: Rational Numbers and Integer Practice
A lesson for students to practice adding integers, defining rational number, and placing rational numbers on a number line. Included on the page is videos and documents to help execute the lesson.
K-5 Math Teaching Resources
K 5 Math Teaching Resources: Adding and Subtracting 100 [Pdf]
Students can practice addition and subtraction of 100 on a number line with this activity.
Illustrative Mathematics
Illustrative Mathematics: Many Ways to Do Addition 1
Students will learn that there are multiple ways to solve math problems, such as drawing a picture, using counters, using fingers, using a number line, and memorizing facts. The teacher writes a simple addition problem on the whiteboard...
Visual Fractions
Visual Fractions: Add Fractions With Number Line or Circle Models
This site is provided for by Visual Fractions. Add mixed numbers with like denominators using circles. Click on the "Explain" button to understand the answer.
Other
Nearpod: Adding Within 100
In this lesson on addition within 100, students will learn how to compose numbers and will explore strategies to add double-digit numbers such as vertical addition, regrouping, using multiples of 10, and labeling an open number line.
Better Lesson
Better Lesson: Comparing Things!
Second graders explore numbers in a variety of ways to understand how to compare three-digit numbers based on an understanding of place value. This lesson includes an interactive number line video, samples of student work, and a...
Better Lesson
Better Lesson: Smoothing Out Subtraction
Second graders demonstrate comfort with addition, but show less ease with subtraction. Repeated practice with subtraction is necessary to build fluency.
Help Algebra
Help algebra.com: Addition & Subtraction of Real Numbers
Using a number line, the technique for adding and subtracting real numbers is demonstrated. Notation and calculator use is also touched on at the end of the lesson.
Lesson Tutor
Lesson Tutor: Multiplying Two Digits by Three Digits
An interesting lesson plan is presented here for teachers instructing students on how to multiply two-digit numbers by three-digit numbers. The site refers to the process as "line dancing," and presents a worked-through example. At the...
Texas A&M University
Wtamu Virtual Math Lab: Intermediate Algebra
This site is a tutorial for students in algebra 2 or for those who need a refresher. The site has explanations, definitions, examples, practice problems and practice tests are found covering topics such as linear equations, graphing,...
PBS
Pbs Learning Media: Math + Arts: The Absolute Value of Dance
In this lesson, learners use a graph to choreograph a dance figure. Media resources and teacher materials are included.
ClassFlow
Class Flow: Adding and Subtracting Integers
[Free Registration/Login Required] In this flipchart students watch a video on adding and subtracting integers, take notes, then practice with colored chips and a number line.
TeachEngineering
Teach Engineering: Forces and Graphing
This activity can be used to explore forces acting on an object, to practice graphing experimental data, and/or to introduce the algebra concepts of slope and intercept of a line. A wooden 2x4 beam is set on top of two scales. Students...