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Lesson Plan
EngageNY

Dividing Multi-Digit Numbers Using the Algorithm

For Students 6th Standards
Scholars learn to divide multi-digit numbers using the standard algorithm in the 14th installment in a module of 21 parts. They get plenty of practice with the algorithm by completing a worksheet.
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Lesson Plan
Curated OER

Solving a Simple Maze

For Teachers 7th - 12th Standards
It is a-maze-ing how lost one can get. Teams reconstruct a simple maze and solve it. Participants create an algorithm that a robot would follow in order to solve the maze as well. The activity includes an extension directing pupils to...
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Lesson Plan
EngageNY

The Division Algorithm—Converting Decimal Division into Whole Number Division Using Fractions

For Students 6th Standards
Knowing the standard algorithm opens up a whole new world of division. Scholars learn how to convert division involving decimals to division involving whole numbers to use the standard algorithm. Knowing how to multiply with powers of...
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Lesson Plan
Curated OER

Area Model of Multiplication Using Base 10 Manipulatives

For Teachers 3rd - 5th
Explore two-digit multiplication with your class as they work in groups to build models of two-digit multiplication using base 10 manipulatives. They construct rectangles replacing standard numbers with equivalent place values using the...
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Lesson Planet Article
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Curated OER

How to Make Multiplying Fractions Exciting

For Teachers 4th - 7th
Make sure your pupils understand the algorithm by using this hands-on lesson using modeling clay.
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Lesson Plan
Curated OER

Multiplying in Columns, Standard Way

For Teachers 3rd - 4th
In this multiplying and carrying worksheet, students compare the standard algorithm with the multiplying in parts method and their examples, choose which method to use, and find the products. Students solve twenty problems.
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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.
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Lesson Plan
Shodor Education Foundation

Algorithm Discovery with Venn Diagrams

For Teachers 9th - 12th Standards
Here is a lesson that takes an interesting approach to analyzing data using box and whisker plots.  By using an applet that dynamically generates Venn diagrams, the class forms a strategy/algorithm for guessing the rule that fits the...
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Lesson Plan
Curated OER

Alternative Algorithms

For Teachers 6th - 8th
Analyze algorithms for computing with rational numbers and develop fluency in their use with your math class. They work individually to solve the problems on the "Alternative Algorithms" sheet. Then, they analyze the appropriateness of...
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Lesson Plan
Curated OER

Models and Algorithms to Solve Multiplication Problems

For Teachers 7th - 9th
Students choose the correct strategy to solve multiplication and division. In this algorithm lesson, students use at least two strategies that use properties of operations and estimation. Students also recognize the relationship between...
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Worksheet
Curated OER

Standard Equation of an Ellipse

For Students 10th - 12th
In this ellipse worksheet, students explore given equations and write them in standard form. This one-page worksheet contains ten ellipse algorithms.
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Interactive
Scholastic

Study Jams! Addition with Regrouping

For Students 2nd - 4th Standards
Zoe needs to back up her music collection, but do her friends have enough space on their computers to help? Find out as you teach your class how to add two- and three-digit numbers with regrouping. Place value is emphasized as both the...
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Lesson Plan
EngageNY

Grade 5 Math Module 1, Topic D, Lesson 9

For Teachers 5th Standards
Introduces addition of decimals by using unit notation to represent the problem. Pupils use a place value chart to decompose the numbers and then add before connecting to the standard algorithm. 
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Lesson Plan
Illustrative Mathematics

Reasoning about Multiplication and Division and Place Value, Part 2

For Teachers 5th - 7th Standards
The learner puts reasoning and estimation to work. The directions are to place a decimal in the answer to make the equation true. Pupils are to look at the two problems, one multiplication and one division, and estimate an answer. No...
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Lesson Plan
EngageNY

Rational and Irrational Numbers

For Teachers 10th - 12th Standards
Back to the basics: learning how to add numbers. The 17th installment of a 35-part module first reviews addition techniques for rational numbers, such as graphical methods (number line) and numerical methods (standard algorithm). It goes...
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Activity
Curated OER

Folding strips of paper

For Teachers 5th Standards
Fifth graders need concrete experiences to introduce a unit on multiplying fractions by fractions. A strip of paper is used to create a number line and represent 5/6. It is folded first in half, and then in quarters. After unfolding,...
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Lesson Plan
Curated OER

Partial Quotients

For Teachers 5th
Fifth graders examine the partial-quotients algorithm for finding the answer to a division problem.  In this partial quotients lesson, 5th graders demonstrate the process of division through a series of estimations.  Students examine the...
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Lesson Plan
Curated OER

Two-Digit Addition at the Zoo

For Teachers 2nd
Your second graders explore two digit addition with regrouping. They will investigate problem solving strategies within the context of a trip to the zoo. Multiple resources and assessments are provided.
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AP Test Prep
College Board

Team Problems in Computer Science

For Students 10th - 12th
There is no I in team. Seven team problems provide classmates the opportunity to work with a partner on a task. Projects span the course and require pupils to apply their knowledge. Tasks range from writing the algorithm in English to...
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Lesson Plan
Curated OER

Divisor The Great! (Divide by Two-Digit Divisors)

For Teachers 5th
Manipulatives make learning division easier! Your class will discover the difference between dividing with one- and two-digit divisors, and practice the procedures for each using the standard algorithm. They will use estimation to ensure...
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Worksheet
Curated OER

Long Division 1 Homeschooling Haven

For Students 4th - 7th
Long division without remainders is the name of the game in this resource. Students practice the standard algorithm as they solve problems that containing four- or five-digit dividends and three-digit divisors. There are actually six...
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Lesson Plan
Gecko Mathematics

Gecko Mathematics: Multiplying Unit Fractions

For Teachers 5th - 7th Standards
Make learning visible! Have your mathematicians follow along as you use paper strips to demonstrate the concept of multiplying unit fractions. Then, offer a different way of solving the problem using a number line. Finally, introduce the...
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Interactive
PHET

Area Model Decimals

For Students 5th Standards
Area works with decimals too. Pupils use the interactive to model multiplication of two decimals using an area model. They see how the decomposed components of the factors obtain partial products and then the complete product. Using area...
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Lesson Plan
EngageNY

Grade 5 Math Module 1, Topic F, Lesson 14

For Teachers 5th Standards
Be sure to place value on place value understanding. Young mathematicians learn to divide decimals by whole numbers when compatible numbers are not available. They use place value discs in place value charts, then connect this strategy...