Curated OER
Grade 2: Texas Problem Solving
Second graders use numerical data about Texas to write and solve real-life problems involving addition and subtraction (or multiplication and division). They work in pairs to choose three numerical facts about Texas to use to make up...
Curated OER
Add and Subtract
Like the cubs in A Fair Bear to Share, your 2nd grade class will practice adding and subtracting double-digit numbers by grouping, regrouping, and sorting a collection of objects. This requires many resources, but it is well worth the...
Illustrative Mathematics
Making Hot Cocoa, Variation 1
Dividing with fractions can be a confusing task to some, but the activity illustrates how to make groups out of the problem and look at it visually. Use this problem with the instructional activity in the Additional Materials section to...
BBC
Starship English and Math - Online Lesson Plans
Two online lessons, one in math and one in language arts, are here for you. In them, learners play online games which reinforce important skills in literacy and numeracy. The thing I like about both of these lessons is that they get the...
National Security Agency
Ordering, Adding and Subtracting Integers
Prealgebrarians use colored chips, stickers, and pencils to explore the world of integers. They discover absolute value, compare positive and negative integers, and apply operations to them. A detailed procedure for the three-part...
West Contra Costa Unified School District
Connecting Arithmetic Sequences to Linear Equations
Common difference is to arithmetic sequences as what is to linear equations? (Answer: slope) Pupils learn how arithmetic sequences can be considered as linear patterns. They then write linear equations to represent arithmetic...
Futures Channel
Algebra Magic
Abracadabra! Letters can be used in math to represent numbers with the operations of addition, subtraction, multiplication, and division to solve problems! Math magicians will participate in an activity that uses a calculator and a bag...
Curated OER
Beary Good Problem Solvers
First graders role-play addition and subtraction operations with teddy bears. They practice with the bears first, then write and solve the problems.
Curated OER
Two Digit Subtraction No Regrouping
In this math literacy worksheet, students practice solving the 20 problems while focusing on the skill of subtraction while not using regrouping.
Pennsylvania Department of Education
Comparing Sets
Students count back with cubes to model subtraction problems. In this subtraction lesson plan, students compare sets of problems and record their results in a table.
Curated OER
Subtracting Integers
In this subtracting integers worksheet, learners complete problems and fill in charts that require them to subtract integers. Students complete 8 problems.
Curated OER
Analysing a game
Students play a game called 'Limit 2' and analyse their moves in order to establish a winning strategy. The subtraction game in this activity is one of a number of games in a unit called 'Analysing games' in the above publication.
Curated OER
The Tale of the Feral - Care and Multiplication of Feral Cats
Students differentiate between a feral cat and a domesticated cat. For this cat lesson plan, students use the scientific method, calculate averages, solve story problems, and learn how a caretaker can help a feral colony live safely.
Curated OER
Walking On The Number Line
Students investigate the concepts of expressions and equations while defining the similarities and differences. They explore the operations by using a number line and record answers while working with the teacher. Students play the game...
Curated OER
Mental Addition and Subtraction
Students play the online game ArithmAttack to practice mental math skills. They play the game to as many additions or subtractions as possible in sixty seconds. Afterward, they complete a paper based follow up exercise.
Curated OER
Using Excel, the Internet, And Word To Create a Spreadsheet, Chart, And Instructions
Learners improve data entry in a spreadsheet.
Curated OER
Team Problem-Solving Fun
Students work in groups to solve a variety of puzzling activities which include math, spelling, anagrams, and geography. They use cooperative skill to accomplish each task and chart their group progress.
Curated OER
Controlling the Code: Molecules at Word
Young scholars investigate how cells determine which genes will be expressed and which will be silent. In this genetics lesson, students use on-line resources to complete a worksheet and gather information about gene regulation. Lesson...
Curated OER
Subtracting from Ten: Using Math with Music
Students explore basic math functions by singing with their classmates. In this addition and subtraction lesson, students sing the song "5 Green and Speckled Frogs"and complete a list of subtraction problems. Students complete a...
Curated OER
Math Game Using A Tic-Tac-Toe Board
Elementary schoolers play a math game using a Tic-Tac-Toe Board. This simple idea can be used with virtually any grade level. A team of learners are the "O's," and the other is the team of "X's." Each time a team gets a problem correct,...
Curated OER
Number Line Locomotion
Here is a great lesson that incorporates movement into academic learning. Students improve addition subtraction skills by using number lines and locomotor movement.
Curated OER
Area and Volume
What is the difference between area and volume? Have your charges build models of square centimeters, square inches, square feet, square meters, etc. It's definitely challenging, but there is no better way to learn than by trying...
Curated OER
On the Trail of the Blue Crab
Third graders read the article "Blue Claw," discuss crab migration, and look at a map of the Hudson River. They complete a worksheet where they must use subtraction to determine the distance migrating crabs travel.Web links, article, and...
Curated OER
www.tutor-usa.com worksheet
Algebra learners can practice solving one-step equations using both addition and subtraction with decimal numbers. A few problems challenge the pupil to write and solve their own equation based on information given in a table.