Curated OER
Tennis Ball Addition
Second graders practice their addition basic facts. They work in groups of three with one tennis ball or Koosh ball. Students call out a number one at a time and passes the tennis ball to another. The third student adds the two numbers...
Curated OER
Can You Guess
Students develop useful strategies for mental calculation when estimating possible addition solutions. They mentally perform calculations involving addition and subtraction. Students state the estimated sum or difference between numbers.
Curated OER
Perimeter Play
Fifth graders identify that the perimeter of a shape is the sum of its sides.
Students cut some string or rope to make the sides of a rectangle. Students write the measurement of the length of the rectangle and the measurement of the...
Curated OER
Math + Fitness = FUN
Students play a game wherein they role 2 dice and calculate either the sum, difference or product of the numbers and the answer is the number of exercises they do. They change stations to do different exercises or skills.
Wolfram Research
Wolfram Math World: Sum
This page gives a complete discussion of the advanced applications of the summation operation in mathematics. Provides information about sigma, or summation notation, a manner of writing sums and how to manipulate them. The site also...
![Inside Mathematics: Incredible Equations [Pdf] Lesson Plan](https://d15y2dacu3jp90.cloudfront.net/images/attachment_defaults/resource/large/FPO-knovation.png "Inside Mathematics: Incredible Equations [Pdf] Lesson Plan")
University of Texas
Inside Mathematics: Incredible Equations [Pdf]
This task challenges a student to demonstrate understanding of concepts involved in addition and subtraction.
University of Texas
Inside Mathematics: Pocket Money [Pdf]
This task challenges a student to demonstrate fluency in adding and subtracting whole numbers.
Utah Education Network
Uen: Properties
This multi-segment lesson plan walks students through understanding and applying the properties of multiplication and addition. It provides a song for learning the properties as well as ideas for assessment.
Sophia Learning
Sophia: Sum of Angles in Polygons
This tutorial with video and slideshow components investigate the characteristics of polygons as well as how to calculate the interior and exterior angles of any polygon. It offers two PowerPoint presentations and two videos that feature...
Purple Math
Purplemath: Sequences and Series: Terminology and Notation
Explains the basic terminology and notation of sequences and series, including summation symbols, subscripts, and indices.
AAA Math
Aaa Math: Adding Nickels and Pennies
This site offers practice in adding nickels and pennies. Three timed games are provided to test students' understanding of the skill.
AAA Math
Aaa Math: Adding Dimes, Nickels, and Pennies
Students can practice adding coins using the interactive games and practice exercises provided on this site.
AAA Math
Aaa Math: Estimating a Sum
Students can practice estimating sums to the nearest thousand in a series of self-check exercises and timed learning games.
AAA Math
Aaa Math: Front End Estimation of Sums
Students can practice estimating sums using front-end estimation in a series of self-check exercises and timed learning games.
AAA Math
Aaa Math: Addition Using Estimation
This site explains how to estimate sums by rounding whole numbers. Games and exercises are provided to practice the skill.
AAA Math
Aaa Math: Front End Estimation of Sums
Students use front-end estimation to solve addition problems. Learning exercises and games are provided to practice the skill.
AAA Math
Aaa Math: Inverse Relationship of Subtraction and Addition
Students explore the inverse relationship of addition and subtraction. The resource provides self-check exercises and timed learning games to practice the concept.
AAA Math
Aaa Math: Addition of Decimal Tenths
Students can practice adding decimal numbers in the tenths place through a series of self-check exercises and timed learning games.
Wolfram Research
Wolfram Mathworld: Riemann Integral
This site explains the Riemann Integral and its relation to the Riemann Sum. This site addresses double and triple Riemann Integral scenarios. Includes formulas, definitions, and links to related sites.
Beacon Learning Center
Beacon Learning Center: Sum Fun
An interactive learning tutorial helps students practice addition facts up to 18.
Mr. Martini's Classroom
Mr. Martini's Classroom: Math Addition With Carrying 2, 3, and 4 Digits
Students solve two, three, and four-digit addition problems with carrying. The sum turns blue if correct.
CK-12 Foundation
Ck 12: Elem Math: Addition Select the Incorrect Sentence
[Free Registration/Login may be required to access all resource tools.] Students practice finding the addition sentence that is not equal to the desired sum.
Quia
Quia: Addition Level 1
Students can practice addition facts using the interactive matching games on this site.
K-5 Math Teaching Resources
K 5 Math Teaching Resources: Difference Add [Pdf]
Students will use playing cards to determine the difference between numbers drawn.