Arrays Teacher Resources
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Review of Arrays
In this computer programming review worksheet, students answer 50 multiple choice questions on one and two dimensional arrays.
New! Solve Multiplication Problems by Drawing an Array
Here's a great way to learn about the powerful multiplication strategy of using arrays. A review discusses multiplication in terms of repeated addition, grouping, and as arrays. Then, two examples illustrate how to figure out word problems by drawing an array. This is the second of five videos about interpreting products of whole numbers.
New! Understand the Commutative Property by Naming Arrays
An array acts as the vehicle for learning a powerful multiplication strategy–counting in patterns to multiply. With a step-by-step visual breakdown of multiple methods for counting a 4x2 array, learners see that there is more than one way to solve a problem. As the first video of a five-part series, the lesson does a lot to scaffold learning that will come later.
New! Relate Area to Arrays
How do arrays relate to area? Learners use prior knowledge about arrays to think about finding the area of a rectangle in the first of two videos on relating area to multiplication. The resource points out the common error of adding the length and width unit instead of multiplying them.
Solar Arrays for the Space Station
Students explore the challenges that are faced when transporting materials into space. They review the various forms of energy, including solar arrays, that are used on the International Space Station and how generating this energy calls for collaboration between researches on earth and in space.
Using Arrays to Show Multiplication Concepts
Learners practice multiplication concepts. In this multiplication activity, pupils make arrays by using counters and solve various multiplication questions. They model arrays with counters for reinforcement.
Ice Cube Array Design
In this optical array lesson, learners read a scenario that asks them to design the layout of an optical sensor using an ice cube tray. Students must come up with a design that will maximize the space using geometrical shapes. This link includes an attached printable version of the lesson.
Pumpkin Patch Math
Going to the pumpkin patch? Start with this multiplication lesson plan using pumpkin arrays and factors between 1 and 10. As you project a hundred chart, learners use their own (handout included) to map out a farmer's field. First, he plants three rows with ten pumpkins in each. Then, he plants ten rows with six pumpkins in each. Learners record the equations in the provided worksheet, and watch for patterns when dealing with 10 as a constant factor. Follow-up activities are provided.
Risk: Divide and Conquer
Have fun building mathematical proficiency by engaging children in a math game! All you need to do is print the game board, playing cards, and instructions and let those kids have some fun. They move their pieces around the board in order to conquer or take each square, the trick is they can't take a square until they divide double-digit numbers and show their work. They practice writing equations, using arrays, or drawing an area model to complete each problem. Even your most reluctant mathematicians will love this game.
Working with larger arrays
Fifth graders use arrays to show the meaning of multipication in selected situations. They practice using large and small arrays. The lesson has numerous activities, which gives students more opportunities to display academic growth.
The Any Way Array
Fourth graders participate in a lesson that focuses on the skill of multiplication. They practice using arrays to display multiplication using two digits and then write the corresponding number sentences.
Arrays And Factors
Young scholars participate in a lesson that is concerned with the concepts of arrays and factors. They use a Hershey bar and divide it into segments in order to simulate the arrays. Then students construct other arrays from the leftover pieces.
Arrays To See Multiplication
Fifth graders examine multiplication. They construct arrays to demonstrate specific multiplication facts. They identify examples and non-examples of arrays. Students use counters to model the commutative property of multiplication.
Introduction to Estimation and Making Arrays
Pupils explore the concept of estimating and organizing a group of objects into an array to count the exact number of items. They create their own arrays and practice elements of estimation.
In this making arrays worksheet, students, working with a partner, study and calculate how to make arrays by completing six exercises.
Learners recognize patterns in arrays and repeat these patterns back to the teacher. They determine and tell the teacher the total number of squares in the array based on the pattern they recognize.
Twelfth graders compare and contrast variables and arrays. Using data, they enter the information into a spreadsheet and an array to compare how they appear. To end the instructional activity, they complete basic programs in which they use arrays.
Here's a delicious approach to rectangular arrays which will have your scholars learning all about Peeps. They visit the online Peep headquarters to watch a history of the treat and take a virtual factory tour. Discuss why Peeps are packaged the way they are and connect this to rectangular arrays. Partners use a handout to guide them in creating their own arrays and describing them using addition and multiplication sentences. They explain the counting pattern their array demonstrates and write the related fact family. Allow scholars to apply these skills as they package various items. How many can fit in the box? They finally revisit the website to take a quiz.
Fourth graders play a game with red and green cards (composite and prime numbers). As a card is drawn students create all possible arrays. The winner of each round is the person with the most arrays. Students discuss their results, and define the terms prime and composite.
Fourth graders define prime numbers and examine which numbers are prime numbers. They access prior knowledge to show multiples in an array. Pupils play a game to determine which numbers are prime numbers.