Worksheet
Curated OER

Problem Solving: Too Much, Too Little Information

For Students 3rd - 5th
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.
Lesson Plan
Curated OER

Subtracting Integers with Counters

For Teachers 7th - 9th
Students subtract integers using counters. In this algebra lesson, students solve linear equations using an online tool. They use subtraction to isolate the variable.
Lesson Plan
Alabama Learning Exchange

Pat Brisson's Benny's Pennies

For Teachers 1st - 2nd
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...
Lesson Plan
Curated OER

The Numbers Get Larger

For Teachers 2nd
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...
Lesson Plan
Curated OER

It's a Fact!

For Teachers 2nd
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...
Worksheet
Helping with Math

SubtractionL 3-digit - 2-digit

For Students 3rd - 4th Standards
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!
Lesson Plan
Curated OER

Jack and the Beanstalk Estimation

For Teachers 3rd - 4th
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.
Lesson Plan
Curated OER

Frogs in Ponds

For Teachers 1st
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...
Lesson Plan
Curated OER

Reading to Calculate

For Teachers 9th - Higher Ed
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.
Lesson Plan
Curated OER

Rockin Review

For Teachers 1st
First graders practice math facts by matching a written fact with a math fact card.
Lesson Plan
Curated OER

Number Tick Tack Toe

For Teachers K - 3rd
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.
Worksheet
Curated OER

Subtract 9 From Any 2-digit Number

For Students 2nd - 3rd
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.
Lesson Plan
Curated OER

Examining Estimation

For Teachers 2nd
Second graders participate in various activities which help them explain and explain the difference between an estimate and an exact amount.
Lesson Plan
Curated OER

The Number Partner

For Teachers 1st
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.
Lesson Plan
Curated OER

Ten Pennies

For Teachers K - 6th
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'.
Lesson Plan
Curated OER

Hoping Backward to Solve Problems

For Teachers Pre-K - 2nd
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.
Lesson Plan
Curated OER

Roll On Down!

For Teachers 1st - 2nd
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.
Lesson Plan
Curated OER

Shopping with Money

For Teachers 4th - 5th
Students apply their knowledge of addition and subtraction of money into real life situations.
Worksheet
Curated OER

Addition: 3-Digit Sums (Carrying Tens)

For Students 2nd - 4th
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
Lesson Plan
Curated OER

Whole Language Approach in Solving Word Problems

For Teachers 1st - 3rd
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.
Lesson Plan
Pennsylvania Department of Education

Comparing Sets

For Teachers Pre-K - 2nd
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.
Lesson Plan
Curated OER

Subtracting Using Estimation

For Teachers 3rd
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.
Lesson Plan
Pennsylvania Department of Education

Determine Volume of Solids Using Water Displacement

For Teachers 6th - 8th
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...
Lesson Plan
Curated OER

The Multiplier (origin of the algorithm)

For Teachers 4th - 8th
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.