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Curated OER
Problem Solving: Too Much, Too Little Information
In this too much/too little problem solving worksheet, students complete a set of 5 problems, using a table of information to determine whether too much or too little information is given before solving.
Curated OER
Subtracting Integers with Counters
Students subtract integers using counters. In this algebra lesson, students solve linear equations using an online tool. They use subtraction to isolate the variable.
Alabama Learning Exchange
Pat Brisson's Benny's Pennies
Learners listen to the book, "Benny's Pennies" and conduct math and language arts lessons to go along with the book. They demonstrate their ability to count pennies, understand proper sequence, and rewrite a story using different...
Curated OER
The Numbers Get Larger
Second graders examine how to use mental strategies for addition and subtraction. They look at part/whole strategies for multi-digit problems and define which one would be best used for a particular problem. They use tens frames to solve...
Curated OER
It's a Fact!
Second graders investigate the concept of addition and subtraction while manipulating a variety of different resources. They focus upon the use of the games in order to keep student engagement. Then students are given the opportunity to...
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!
Curated OER
Jack and the Beanstalk Estimation
Students use estimation and pencil-paper calculations to help Jack and his mother solve a variety of life problems. They solve problems using various math operations, i.e., addition, subtraction, and measurement.
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...
Curated OER
Reading to Calculate
Young scholars examine the calculator. For this math lesson, students use the directions to learn how to use a calculator. Young scholars apply the knowledge and solve problems using the calculator.
Curated OER
Rockin Review
First graders practice math facts by matching a written fact with a math fact card.
Curated OER
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.
Curated OER
Subtract 9 From Any 2-digit Number
In this subtraction worksheet, learners solve 18 problems in which the number 9 is subtracted from a two digit number. No hints or strategies are provided.
Curated OER
Examining Estimation
Second graders participate in various activities which help them explain and explain the difference between an estimate and an exact amount.
Curated OER
The Number Partner
First graders study number pairs and identify number pairs that sum to numbers from 10 to 30. They use number pairs to solve addition and subtraction problems. They make sensible estimates and check the reasonableness of answers.
Curated OER
Ten Pennies
Young scholars play logic and strategy games with pennies. In this pennies worksheet, students play one game called 'From counting to arithmetic', and one called 'Counting and mental math'.
Curated OER
Hoping Backward to Solve Problems
Students use number lines to compare differences. In this math lesson, students use a number line to solve problems. Students predict differences and answer puzzles using subtraction.
Curated OER
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
Shopping with Money
Students apply their knowledge of addition and subtraction of money into real life situations.
Curated OER
Addition: 3-Digit Sums (Carrying Tens)
In this addition practice worksheet, students improve their math skills as they solve 30 problems that require them to add 2-digit numbers to 2-digit numbers
Curated OER
Whole Language Approach in Solving Word Problems
Students explore the concept of word problems. In this word problems lesson plan, students read a version of the Three Little Pigs. Students discuss what math vocabulary words such as 'in all' and 'many more' meant in the story.
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 Using Estimation
Third graders play the game, "Who Wants To Be A Millionaire?" while subtracting using estimation. I really like the format of this fun game, which utilizes the lifelines and strategies found in the real game on television.
Pennsylvania Department of Education
Determine Volume of Solids Using Water Displacement
Students explore math functions by completing math equation worksheets. In this inequality instructional activity, students define a list of math terms and discuss the difference between an equation and inequality. Students utilize a...
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.