Virginia Department of Education
Integers: Addition and Subtraction
Young mathematicians construct their own understanding of integers with an inquiry-based math lesson plan. Using colored chips to represent positive and negative numbers, children model a series of addition and subtraction problems as...
Curated OER
Easy Addition
Learnes practice an alternate way of carrying when doing addition. In this addition instructional activity, everyone applies an alternate algorithm when they need to carry when adding. They work from left to right instead of starting in...
Curated OER
Multiplication Two Digit by Three Digit Numbers
In this multiplication worksheet, students multiply two digit numbers by three digit numbers. Students complete 30 multiplication problems.
Curated OER
Integer Computation-Rules
In this integers worksheet, learners solve and complete 17 different problems that include using the integer computation-rules. First, they read the flow chart on the right and add their own examples to show that they comprehend each...
Curated OER
Alternative Algorithms
Analyze algorithms for computing with rational numbers and develop fluency in their use with your math class. They work individually to solve the problems on the "Alternative Algorithms" sheet. Then, they analyze the appropriateness of...
Curated OER
The Multiplier (origin of the algorithm)
Students explore basic algorithms for addition, subtraction, and multiplication. They use models to demonstrate solving two-digit by two-digit multiplication. Students demonstrate vertical formats to solve multiplication problems.
Curated OER
Hands-On Equations: Teacher Notes
Math manipulatives are wonderful for demonstrating any number of mathematical concepts in a concrete and visual way. Learners review the addition property of equality and the zero property using a scale model kit (not shown). They...
Eisenhower Regioanl Consortium for Mathematics and Science Education
Lesson 10: Integer Addition and Subtraction (for the TI-73 only)
Using a number line on the floor made from masking tape and manipulatives, learners observe a demonstration of the addition and subtraction processes. After completing several worksheets, they solve three-term problems using calculators...
Curated OER
Getting Started with Math By Hand Concept App
Pupils build number sense skills and gain confidence at math by hand. Review how to perform algorithms for the four basic operations. A step-by-step mode emphasizes place value in the base-ten system for each algorithm. Learners identify...
Curated OER
Multiplying Three Digit Numbers
In this multiplication worksheet, students multiply three digit numbers by three digit numbers. Students complete 24 multiplication problems.
Curated OER
Problem Solvers
Fifth and sixth graders compare decimals to the place-value structure in the base-ten number system. They represent fractions as parts of unit wholes, as parts of a set, as locations on a number line, and as divisions of whole numbers....
For the Teachers
$1 Math
Captivate your class by having them find the value of their names, different zoo animals, musical instruments, etc.,with a mental math lesson. Using the coding formula listed, children learn to fluently estimate and calculate simple sums.
Curated OER
Adding and Subtracting Fractions and Mixed Numbers
Elementary schoolers participate with their teacher's instruction to learn to add and subtract fractions and mixed numbers. They use fraction strips to complete addition and subtraction problems. A step-by-step script is provided to help...
Curated OER
Three Digit Multipliers
In this multiplication worksheet, students multiply 3 digit numbers together. Students complete 6 three digit number multiplication problems.
Curated OER
Guess a Birthday
In this birthday worksheet, students perform given algorithms. Upon performing all problems correctly, the student's final answer will be his/her birthday. This one-page worksheet contains 8 problems.
Curated OER
Operations with Positive Fractions and Decimals
Explore the concept of fractions and decimals! In this fractions and decimals lesson, pupils use fraction tiles to express fractions. They play a fraction review basketball game where when a team gets a question correct they get to shoot...
Arizona Department of Education
Area and Perimeter of Regular and Irregular Polygons
Extend young mathematicians' understanding of area with a geometry lesson on trapezoids. Building on their prior knowledge of rectangles and triangles, students learn how to calculate the area of trapezoids and other irregular...
Curated OER
Calculator Spelling
Sixth graders practice creating and solving number sentences on a calculator. They interact with number facts, their properties, algorithms and estimation. Each student recognizes inverse relationships of addition, subtraction,...
Curated OER
Invitation to Integers
Students find zero pairs and add integers using zero pairs and a number line. They generalize rules for adding integers. Students complete a matching activity on the Internet that helps them practice adding integers.
Curated OER
Invitation To Integers
Students find zero pairs and add integers using zero pairs and a number line. They generalize rules for adding integers. The class view approximately 10 minutes of video divided into three segments.
Curated OER
Division of Whole Numbers
Students divide two-digit numbers by one-digit whole numbers. Using a specified website, they play complete standard division algorithms. Students receive immediate feedback on the website. In addition, they complete problems on paper.
University of Minnesota
Fraction Operations and Initial Decimal Ideas
Add another strategy to the toolboxes of young mathematicians with this elementary math lesson on using number lines to add and subtract fractions.
Raytheon
Adding and Subtracting Decimals
For this adding and subtracting decimals instructional activity, students add and subtract numbers with decimals in word problems. Students complete 12 word problems.
National Security Agency
Money Maters: Integers are Integral!
A thoroughly-written lesson plan and a plethora of worksheets about integers comprise this resource. Neophyte number crunchers learn to recognize integers, add and subtract them, and apply the concepts to the designing of a personal...