Curated OER
Prime and Composite Numbers
Fifth graders use prime factorization to identify prime and composite numbers. They use cubes to find factors. In groups, 5th graders draw rectangular arrays to discover prime numbers under 100.
Curated OER
Equal Groups of 5 practice 19.7
In this dividing by five worksheet, students use arrays to write division sentences and solve a word problem. Students write answers to five problems.
Curated OER
The Commutative Cookie
Third graders investigate the commutative properties of multiplication and focus upon the setting of cubes in the correct patterns to solve problems. They differentiate between numbers that have multiple factors and prime numbers....
Curated OER
Multiplication Stories
Second graders solve various multiplication math word problems involving cars and people, fish and fish bowls, and tables and table legs. They write and solve multiplication story problems related to whole numbers, addition, subtraction,...
Curated OER
Long Division in Two Digits
In this math worksheet, students find the solutions to the problems for long division. The answers can be shown in the printable version.
Curated OER
Math Basic Skills Review 2nd Quarter
In this math skills review learning exercise, students complete a variety of multiple choice problems including one digit multiplication with variables, division, patterns, and fact families.
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...
Curated OER
Don't Eat the Crayons: Real-Life Multiplication
Third graders use items which come in sets to look for real-life multiples and write multiplication problems. This lesson assess the student's understanding of the meaning of multiplication using an array model and manipulatives.
Teach Engineering
Solar Power
Elementary schoolers discover how engineers use solar energy to heat buildings. They take a close look at some of the materials used: sand, salt, water, and shredded paper and evaluate the efficiency of each material. An incredible...
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
"One Hundred Hungry Ants" by Elinor J. Pinczes
Students identify arrays and write multiplication and division problems to match. They write their own multiplication book using arrays.
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
Lengths, Areas and Shapes - Week 9
In this lengths, areas and shapes worksheet, students explore overlapping and non-overlapping patterns. They identify the number of objects in a pattern, determine how the pattern may be folded to create additional patterns, and...
Curated OER
Partial Products
Pupils use the partial products algorithm to complete multiplication problems. In this partial products lesson plan, students are introduced to the algorithm and connect the relationship to multiplication and division problems.
Curated OER
Who's In The Fact Family?
Students study related addition and subtraction facts. In this math lesson, students use related addition and subtraction to solve problems. Students use manipulatives to explore fact families.
California Education Partners
Lashelles Garden
Let knowledge grow bountifully like plants in a garden. Given a diagram of a rectangular garden split into plots, scholars determine the area of the entire garden and the areas of the individual plots. As a culminating activity, they...
Curated OER
Making Equal Groups
In this making equal groups worksheet, students, working with a partner, study and calculate how to make equal groups through six word problems.
Curated OER
Multiplication Facts for 2,5, and 10
Students practice multiplying by 2, 5 and 10. In this multiplication lesson, students participate in a teacher demonstration lesson of grouping for multiplication or making arrays. They concentrate on two's in this lesson and apply what...
Discovery Education
Sonar & Echolocation
A well-designed, comprehensive, and attractive slide show supports direct instruction on how sonar and echolocation work. Contained within the slides are links to interactive websites and instructions for using apps on a mobile device to...
Curated OER
Prime and Composite Numbers
Sixth graders inspect prime and composite numbers. Using graph paper, they draw as many different shaped rectangles as possible. They use the dimensions of the rectangles to discuss prime and composite numbers. Students create a chart...
Curated OER
Number in Geometry
Students 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. Students develop a wide range of...
Curated OER
Making Rectangles
Learners study rectangles. In this math instructional activity, students use numbers, measurements and geometry to draw rectangles of varying sizes.
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Solving Problems
Second graders become familiar with need strategies for computation of money problems and estimating sums. In this computation lesson plan, 2nd graders solve real life problems to understand estimation and money problems.