Curated OER
Addition Relay
Third graders, in pairs, use a bag of counters which can be dried beans, squares of papers, etc.
Mangahigh
Mangahigh: Number: Multiplication Algorithm
This site provides students practice with the concept of multiplication algorithms. Students can learn about the topic by completing an interactive tutorial. Students can then take a ten question timed test to practice the skill.
Cut the Knot
Cut the Knot: Lattice Multiplication
Have you heard of the 13th century mathematician, Leondardo Fibonacci? See examples of his concept of a lattice multiplication algorithm. Several example problems, including an interactive one where students can change the factors, are...
Other
Lesson Plan Mental and Written Multiplication Algorithms
This lesson plan offers a variety of algorithms and systematic errors that occur in written multiplication problems.
Mr. Martini's Classroom
Mr. Martini's Classroom: Long Multiplication Quiz
Students are challenged to multiply two, three, and four-digit numbers using the standard multiplication algorithm. They can set the number of digits in the multipliers, choose to have their quiz graded, or select new problems.
Alabama Learning Exchange
Alex: Multiplication My Way
In this lesson, students will explore the US Algorithm Method of multiplication using a unique way of describing it known as the Turtlehead Method. Students will collaboratively work together to complete story problems using the US...
E-learning for Kids
E Learning for Kids: Math: Hamburger Restaurant: Multiplication
On this interactive site students practice multiplication skills. At the end of the lesson students will be able to perform multiplication facts, find the connection between addition and multiplication and use multiplication to solve...
E-learning for Kids
E Learning for Kids: Math: Igloo: Multiplication
On this interactive website students practice various math skills using a real life scenario with a hockey team. Those skills include completing multiplication facts up to 100, making a list of multiples of a number, and locating factors...
Alabama Learning Exchange
Alex: What's Your Question? Multiplication Word Problems
Students will explore multiplication and word problems. They will work cooperatively to examine a story scenario, list possible questions to develop a completed word problem and solve it using a variety of strategies. The students will...
Quia
Ixl Learning: Long Multiplication
Brush up on your math skills relating to long multiplication then try some practice problems to test your understanding.
PBS
Pbs: Multidigit Multiplication With Standard Algorithm: The Donut Doze Off
In this Cyberchase video, Bianca has a new job decorating fresh-baked donuts. Her supervisor asked her to decorate 12 trays of donuts, but Bianca thought he meant 12 donuts. When she discovers her mistake, she uses multiplication...
Better Lesson
Better Lesson: Representing Fraction Multiplication Day 2
What does it mean when you multiply fractions? How can you multiply fractions without drawing a diagram? Students build on their skills for multiplying fractions and they work to develop an algorithm.
Alabama Learning Exchange
Alex: Area Model of Multiplication Base 10 Manipulatives
Students will use base 10 manipulatives to build a rectangular array to represent double digit multiplication. Students will make the connection between the standard algorithm and the rectangular array.This lesson plan was created as a...
Illustrative Mathematics
Illustrative Mathematics: 5.nbt Elmer's Multiplication Error
Fifth graders are presented with the calculations for a multiplication problem and are asked to explain why the answer is incorrect. They must use estimation, identify the error, show the correct arithmetic, and find the answer another...
University of Texas
Inside Mathematics: Bikes and Trikes [Pdf]
This task challenges a student to demonstrate understanding of concepts involved in multiplication.
Khan Academy
Khan Academy: Multi Digit Multiplication
In this exercise, students practice multi-digit multiplication. Students receive immediate feedback and have the opportunity to get hints and try questions repeatedly.
Louisiana Department of Education
Louisiana Doe: Louisiana Believes: Eureka Math Parent Guide: Multi Digit Multiplication and Division
A guide to support parents as they work with their students in multi-digit multiplication and division.
Khan Academy
Khan Academy: Multi Digit Multiplication
Multiply 2-3 digits by 3-4 digits with carrying. Students receive immediate feedback and have the opportunity to try questions repeatedly, watch a video or receive hints.
Quia
Ixl Learning: Lattice Multiplication
Brush up on your math skills relating to lattice multiplication then try some practice problems to test your understanding.
Cool Math
Coolmath: Coolmath4kids: Lattice Multiplication
Demonstrates step by step how to use the lattice method for multiplying numbers.
K-5 Math Teaching Resources
K 5 Math Teaching Resources: Multiplication Strategy: Partial Products 2 [Pdf]
Break down numbers as a strategy to multiply one-digit by three-digit numbers and two-digit by two-digit numbers.
Calculator Soup
Calculator Soup: Long Multiplication Calculator
Multiplication of positive or negative whole numbers or decimal numbers as the multiplicand and multiplier to calculate the product using long multiplication. The solution shows the work for the Standard Algorithm.
Texas Instruments
Texas Instruments: Rational Expression Multiplication
This StudyCards set uses guided discovery concepts to develop ideas for functions operations, building from rational expression multiplication and division algorithms.
Illustrative Mathematics
Illustrative Mathematics: 6.ns Multiplication, Division and Place Value, Part 1
Sixth graders are presented with a completed multiplication equation and are asked to use it to find the answers to seven other equations. To do this, they must use their reasoning and estimation skills. Aligns with 6.NS.B.3.