Curated OER
Commutative Property
First graders investigate the Commutative Property of Addition. It is introduced using models such as students, counters, balances and dominoes. They discover the order of the numbers in an addition sentence does not change the result...
Curated OER
Money for starters
Students compare the values of coins and paper money. They read prices, read and write any 2-digit number. They model and explain addition calculations with a sum of up to 20.
Curated OER
Frogs in Ponds
First graders determine how numbers are made up of other smaller numbers before examining addition and subtraction. They determine the number pairs that make up a given number and determine when no other pairs can be found. They use frog...
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Number Tick Tack Toe
Students practice basic addition and subtraction facts to twelve. They use high level thinking skills to win at the game of tick tack toe. Students review the rules to the game. They use strategy skills to master the game.
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Multi-Digit Multiplication
Fourth graders practice mastering the ability to multiply multi-digit numbers utilizing rectangular arrays and a variety of mental math strategies. They model and illustrate meanings of multiplication and division of whole numbers and...
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Adding and subtracting fractions: the same sized slice
Students establish a strategy for adding simple fractions. They convert improper fractions to mixed numbers and interpret drawings and storyboards.
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Adding Two-digit Numbers Using Dimes and Pennies
First graders study money. In this addition lesson, 1st graders count and add two-digit numbers using dimes and pennies.
Curated OER
Giggle, Giggle, Quack Pizza Fractions
Students explore the concept of multiplication by using pizza. They read an article discussing how math is used everyday. They try to determine how many pizzas they would need to feed the class.
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
Doghouses, Doors and Design
Students engage in active problem solving as they create a design for a doghouse.They work in collaborative groups to complete their task. In addition, they explore numerical problems and develop unique strategies to assist them with...
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Decimal Fractions of a Set
Sixth graders practice problem solving equations of fractions, ratios and proportions, addition and subtraction stage 6 as well as advanced additive. Emphasis is placed on decimal fractions and then they convert fractions to decimals.
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Using Tens Frames for "Teen" Numbers
Sixth graders practice recognizing teen numbers for the part-whole strategy of bridging to ten. They approach the advanced counting stage to problem solve addition facts to ten utilizing dot patterns on a quinary frame with dot patterns...
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A Method of Front-End Arithmetic
Teach the class how to add using front-end addition. They are given a shopping list and use it to practice adding from the largest place value to the smallest. Computational math and shopping, what fun!
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Regroup and Subtract
In this regroup and subtract worksheet, students "use making 10 strategy" to regroup ones and tens and subtract 5 problems. A reference web site is provided.
Curated OER
Shopping with Money
Students apply their knowledge of addition and subtraction of money into real life situations.
Curated OER
Fundamentals of Multiplication
Third graders examine how multiplication is a quicker and neater form of addition and how they can simulate the concept of groups and (sets) to construct the visual effect of multiplication by way of forming groups of (2's) (3's) and (4's).
Curated OER
Making $ents
Second graders complete several activities that give them opportunities to practice and model strategies that help them count money. They read The Penny Pot storybook; they play a trading game with various coins. They participate in a...
Curated OER
Find a Pattern
In this math patterns worksheet, students solve a series of 5 addition problems; each series has a pattern. Students continue the pattern at the end of each of the 4 rows of problems.
Helping with Math
SubtractionL 3-digit - 2-digit
In this assignment, math minors solve 30 subtraction problems. Two-digit subtrahends are taken away from three-digit minuends. Often, regrouping will be necessary to arrive at the difference. Terrific practice with an answer key provided!
Beacon Learning Center
Fishing for Tens
Children brainstorm and list pairs of numbers that equal ten. In small groups they play Tens Go Fish, which is like regular Go Fish, except your goal is to make pairs that equal ten. Make math fun with this fishing game! A worksheet is...
Curated OER
Saving For Your Future
Young scholars examine their long-term financial goals and research the costs of their goals and investment strategies for meeting them. They identify their goals for the future, conduct Internet research on prices for items on their...
Curated OER
Fraction Facts
Students explore the concept of fractions. In this fractions lesson, students perform basic operations such as addition and subtraction with fractions. Students play a game on the computer called 'Fraction Four' that gives students...
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Roll On Down!
Students create number sentences by rolling two dice. Each student rolls the dice and writes down the numbers in number sentence format. Then they add the problem by using the strategies of counting on and doubles.
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.