Curated OER
Adding and Subtracting Decimals
Fourth graders develop the concept of adding and subtracting decimals. In this decimal lesson plan, they participate in a teacher directed demonstration of how to add and subtract decimals. They work in teams as each person performs one...
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
More or Less Pigs in the Pen
Kindergarteners practice basic addition and subtraction. In this math lesson, students sing a song about pigs on a farm to help them understand the concept of adding and subtracting things together. Some excellent extension activities...
Curated OER
Let's Learn Those Facts
Students practice adding one digit numbers. In this practicing adding one digit numbers instructional activity, students roll dice to determine which one-digit numbers they will add together. Students practice adding one digit numbers...
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
Let's Trade
Second graders engage in a lesson which focuses on adding two-digit numbers and the regrouping process. They identify when the regrouping process is necessary and make appropriate "trades" to complete an addition problem.
Curated OER
Euclidean Algorithm
Young scholars are introduced to the concept of a Greatest Common Divisor. They review the number systems. Students are told how the entire field of Number Theory primarily uses the integers. They are told the Fundamental Theorem of...
Curated OER
Add Groups of 10
In this addition activity, students count each group and write the 2-digit number in the top boxes. Students add the number shown in each table to this number. Students draw a line for each extra 10 added. Students record the total at...
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
Systems of Equations (Systems Project Part 1)
In this systems of equations worksheet, students identify and explore three ways to solve systems of equations: graphing, substitution, elimination. They discuss the strengths, weaknesses, and write an algorithm for each method. ...
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
Add Groups of Ten
In this addition worksheet, students add groups of tens and their remainders to determine the missing addends in the pairs of 2-digit problems and then find the sums. Students solve nine problems.
Helping with Math
Subtraction: 4-digit numbers
Twenty four subtraction problems are displayed on this printable worksheet. All of the problems involve taking a four-digit number away from a greater four-digit number. Regrouping is required in some cases. This nifty homework...
Curated OER
4-Digit Problem Solving: Add and Subtract
In this problem solving worksheet, students solve a total of 7 equations, drawing models and using algorithm. A reference web site for additional activities is given.
EngageNY
The Power of Algebra—Finding Primes
Banks are responsible for keeping our financial information safe. Mathematics is what allows them to do just that! Pupils learn the math behind the cryptography that banks rely on. Using polynomial identities, learners reproduce the...
Code.org
Introduction to Conditional Logic
On one condition ... explore how to use conditionals within conditionals. Scholars apply conditional statements to improve upon the app they built during a previous lesson plan. They also learn about nested conditionals in the 11th...
Curated OER
Multiplication Algorithm (1)
Third graders in a 3rd grade math class make connections from prior instruction and mastery to solve problems in new learning situations. Using logical thinking and prior knowledge to solve current math problems is the focus of this...
Curated OER
Addition Relay
Third graders, in pairs, use a bag of counters which can be dried beans, squares of papers, etc.
Curated OER
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...
Curated OER
Adding and Subtracting Fractions
Second graders use blocks to show the addition and subtraction of fractions with common denominators. They identify the steps in these functions and complete a worksheet.
Curated OER
1st Grade Problem Solvers
First graders investigate, represent and solve problems using number facts, operations, and their properties. They solve on-step addition and subtraction number sentences and word problems using concrete materials. Students construct...
Curated OER
Solve and check multi-step equations and inequalities
Students participate in a lesson that is concerned with the solving of multiple step equations and inequalities. The use of algebra tiles translates the information well for the kinesthetic learners. Then the skills are used to solve the...
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!