Curated OER
Choosing a College
How can mathematics help scholars choose a college? High schoolers learn how they can use decision matrices to rank colleges based on selected criteria. They also see how to weigh criteria using multiplication of the decision matrix by a...
Curated OER
Square Numbers
Fourth graders demonstrate multiple ways to represent whole numbers, decimals, and fractions. Through demonstration and hands-on activities they model square numbers using arrays. Students visually determine that the array makes a square.
Curated OER
Mathematics Within: Algebraic Processes and Its Connections to Geometry
Fifth graders discover the connections between algebra and geometry. With a focus on arrays and factors, they are introduced to multiplication. They develop an array for multiples of 2 through 10 and identify the factors of each row....
Delaware Math Cadre Elementary Committee
Operations and Algebraic Thinking
How to use the relationship between multiplication and division to solve math word problems is the focus of the activity presented here. In it, fourth graders work in groups to solve problems posed by the teacher. Then, each group is...
Curated OER
Fact Families Lessons
Have you ever tried using arrays to help you teach the fact families that go with multiplication and division? If not, you should read this article! Some excellent and easy-to-implement ideas are presented, along with some good lessons...
Rational Number Project
Initial Fraction Ideas Lesson 4: Overview
First-time fraction fiends make paper-folding models for unit and non-unit fractions. They follow teacher-led directions to make models that show 2, 3, 4, 6, 8, and 12 equal parts. An array of fraction review worksheets are included to...
Curated OER
A Polynomial Quilt
Tenth graders create polynomial quilts. In this polynomials lesson, 10th graders use concrete models, such as construction paper, to create various shapes described. Students use the FOIL method to multiply terms and to get a square...
Curated OER
Dividing by 4's
Third graders explore math functions by completing problem solving activities. In this division lesson, 3rd graders utilize the division strategies acquired earlier to divide multiple digit numbers by 4's. Students complete problems on...
Curated OER
Area: It's What's on the INSIDE That Counts!
Second graders participate in a series of hands-on, online and multimedia activities that examine the concept of area. They view clips from the animated series Math Monsters and discuss the purpose of area and how it is used in the real...
Helping with Math
Multiplication: 2-digit x 2-digit
Number crunchers sharpen their math skills as they solve 30 problems requiring them to multiply two-digit numbers by two-digit numbers. Assign this as homework or use it as an assessment after practicing the skill together in class.
Curated OER
Multiplication of Whole Numbers
Multiplication facts should be more than memory; help scholars understand what happens when they multiply using visual math. They examine three arrays of images and choose the multiplication equation that corresponds numerically. Then,...
Curated OER
Relating Multiplication and Division
Students use counters to review arrays and multiplication and learn arrays and division. For this multiplication and division lesson, students use counters to arrange multiplication equations and division equations.
EngageNY
Writing Division Expressions
Express division using different expressions. Individuals learn to write division expressions both with and without the division symbol in the 13th lesson of a 36-part series. They consider both numerical and algebraic expressions...
EngageNY
The Distributive Property and the Products of Decimals
Make multiplication of decimals easier by applying the distributive property. Pupils investigate how they can use the distributive property to multiply decimals. After learning the strategy, they work on some practice problems at...
Curated OER
Number in Geometry
Learners use a number line to assist with their additions. They use a calculator to check for factors. Students are taught factors and multiples. They use array model of multiplication to define meaning. Learners develop a wide range of...
Curated OER
A Tour of Jaffa
Use the age-old Traveling Salesman Problem to introduce Hamilton circuits to your young travelers. Individuals then plan an efficient route to visit all the places they want to go.
Curated OER
students rotate through four workstations that reinforce the concept of symmetry
Second graders, in pairs, use arrays to explore the relationship between multiplication and division.
Curated OER
Hooked On Problem Solving
Fourth graders use properties of operations and problem-solving strategies to do mental calculations, and look for patterns in the solutions. They create an array, using each of the digits 1-9 exactly once to form addition problems...
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
Blank Grids
Second graders model multiplication facts on a multiplication grid. They use the hundreds array to find groupings, known facts to solve multiplication facts. Students demonstrate the ability to use the multiplication facts. They are...
Curated OER
Problem Posing Mathematics
Learners work on multiplication problems. In this hands-on math lesson, students practice the concept of multiplication through manipulatives, arrays, pictures, and drawings. They discover other ways of learning multiplication besides...
Curated OER
Partial Products
Young scholars use the partial products algorithm to complete multiplication problems. For this partial products lesson plan, students are introduced to the algorithm and connect the relationship to multiplication and division problems.
Helping with Math
Multiplication: 4-digit x 1-digit
As the title states, math whizzes multiply four-digit numerals by a single-digit. With 24 problems to solve and an answer key available, this is a handy tool for providing multiplication practice.
Curated OER
Multiplication: 2-digit x 1-digit to 99
In this multiplication practice learning exercise, 3rd graders sharpen their math skills as they solve 30 problems that require them to multiply 2-digit numbers by 1-digit numbers.