Arrays Teacher Resources
Find Arrays educational ideas and activities
Showing 101 - 120 of 1,866 resources
Find the Area of a Rectangle By Multiplying Side Lengths
Why waste time counting up unit squares when the area of a rectangle can be found by simply multiplying the length and width? The third video in this series provides multiple examples and visual models that support young mathematicians with learning this efficient method for calculating area.
7 mins 2nd - 4th Math CCSS: Designed
Find the Area of a Rectangle by Counting Columns and Rows
When finding the area of rectangles, understanding the arrangement of unit squares in rows and columns is essential. The visual models included in this instructional video help to clearly define rows and columns for young mathematicians, using multiple examples to model how they are used to skip count when determining the area of a rectangles.
6 mins 2nd - 4th Math CCSS: Designed
Find the Area of a Rectangle by Counting Unit Squares
Take the first step in teaching young mathematicians about area with the initial video in this five-part series. Beginning with a review of area and key terms related to area measurement, the instructor goes on to clearly model how to find the area of rectangles by counting unit squares.
8 mins 2nd - 4th Math CCSS: Designed
The Napping House
How many people and animals can cram into a single bed? Find out with this cross-curricular math and language arts lesson. Following along with a reading of the children's book The Napping House by Audrey Wood, young mathematicians add and remove counters to ten-frames to model how many living creatures are sleeping in the bed.
Pre-K - 1st Math CCSS: Designed
Multiplying with Packages and Letters
Students explore multiplication. In this multiplication problem solving lesson, students view a video clip which demonstrates loading a truck with packages. Students fill in a blank array to represent 1"X 2" and the multiples when increased by 10.
3rd - 4th Math
Fifth graders apply math to real-world situations. For this mathematics lesson, 5th graders are read the book, "Math Curse," which discusses ways in which math is used each day. Students then write a sequel to the book in groups, brainstorming their own math problems that could be encountered.
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. They also discover patterns and complete a worksheet to end the lesson.
The Commutative Property
Students study the use of the Commutative Property and arrays. In this Commutative Property and array instructional activity, students watch a teacher demonstration of the use of arrays using a set of cans. They discover the Commutative Property of multiplication during the instructional activity, and practice making arrays with stickers.
3rd - 5th Math
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. Students arrange the cubes in arrays.
The Difference of Two Squares
Pupils practice the use of number properties through exploring the difference of two squares, creating an array model for multiplication, and work with decimal numbers. In groups, students explore patterns in an array and determine algebraic reasoning to explain the pattern.
8th - 10th Math
Introduction to Division
Examine how addition, subtraction, multiplication, and division relate to and are separate from each other. As they listen to the book, The Doorbell Rang, they demonstrate the math described in the story by cutting up paper cookies and write a short story incorporating three division problems.
2nd - 4th Math CCSS: Designed
Vocabulary Comic Strips
Who says comic strips aren’t educational? Prove these naysayers wrong by asking your class members to create a comic strip for a selected vocabulary word. Using online technological tools that provide access to an array of options for expressions, your students will craft, save, and share their comic strips that include the definition, synonyms, antonyms, and satirical devices to make the word memorable.
9th - 12th English Language Arts CCSS: Designed
Solar Kit Lesson #13 Solarize a Toy
Students work in teams they select a low-power toy, game, or electrical deive to "solarize," or convert to solar power. They determine the operating voltage of their chosen device and design a solar array to provide this level of voltage. Pupils determine a series of conditions under which they test their toy's performance and, if needed, adjust the size of their solar array to provide more current.
7th - 10th Science