Volume Purchase Program for Education

The Volume Purchase Program allows educational institutions to purchase apps and books in volume and distribute them to students, teachers, administrators, and other employees.* The program also allows app developers to offer special pricing for purchases of 20 apps or more.

Purchase Details

Lattice Multiplication
Lattice Multiplication by Esa Helttula
$3.99 ea. (1-19 units) $1.99 ea. (20+ units)

Distribution Type

Review Order Books cannot be revoked after they are assigned.
To assign apps or books to users, users must be on devices with iOS 7 or later or OS X 10.9 or later installed. To assign apps to devices, devices must have iOS 9 or later or OS X 10.11 or later installed.
Lattice Multiplication
Lattice Multiplication by Esa Helttula
plus tax, where applicable

Distribution Type: Redeemable Codes

You will be notified by email once your order has been processed. You will also receive an email receipt showing any applicable taxes. You can check on the status of your order at any time in Purchase History on your Account Information page.

Distribution Type: Managed Distribution

Assign apps by using a Mobile Device Management (MDM) solution, such as the latest version of Apple Profile Manager. You retain ownership of apps only, allowing you to revoke and reassign them as needed. Learn More

You will be notified by email once your order has been processed. You can check the status of your order at any time in your Purchase History.

Distribution Type: Managed Distribution

Assign books to users on iOS 7 or later or on OS X 10.9 or later using a Mobile Device Management (MDM) solution, such as the latest version of Apple Profile Manager. Book assignments are permanent, and cannot be revoked or reassigned. Learn More

You will be notified by email once your order has been processed. You can check the status of your order at any time in your Purchase History.

Place Order Cancel Books cannot be revoked after they are assigned.

Lattice Multiplication

By Esa Helttula

Description

This app can be used to teach and study the ancient lattice multiplication method. Solving lattice multiplication problems is also excellent times tables practice. The app is very easy to use and it has an intuitive interface with customizable colors and other settings. The user can solve custom and random multiplication problems with small and large numbers.

Reviewed by Wired.com:

"This was one form of multiplication that I’d never done before, but the app taught me very clearly. It makes multiplying large numbers easier, and allows you to see it all visually"

Endorsed by teachers

Rita Zeni, Ecole Sandy Hill Elementary, Abbotsford, BC, Canada:

"The math apps by Esa Helttula allow students to practice and reinforce the specific computation strategies taught in class, with as much or as little scaffolding as necessary.
They also provide individualized feedback to each student, with an immediacy that is not always possible through pencil and paper practice. Being able to adjust the level of difficulty to suit their needs is also very motivating for the students. I am so glad to have come across this great educational tool!"

The Lattice Multiplication Method

Lattice multiplication is algorithmically equivalent to long multiplication. A lattice (a grid) guides the calculation. All the multiplications are done first and then the additions. The method was introduced to Europe in 1202 in Fibonacci's Liber Abaci.

In this groundbreaking book Fibonacci presented many algorithms for working with Arabic numerals. Ancient Indians and Chinese originally invented some of the algorithms. Fibonacci presented both the current standard long multiplication and also an originally Indian method called lattice multiplication, which is faster and more compact for working with larger numbers.

The Lattice Multiplication app

The Lattice Multiplication app allows the user to solve a lattice multiplication problem step by step and animates all the steps. In the steps the user will multiply or add. The correct answer will fly to the right place. If the user presses the wrong button the answer will appear above the keyboard but it will not move.

Settings:

- The multiplicand can have up to 5 digits
- The multiplier can have up to 3 digits
- Custom and random problems
- The current operation for each step can be hidden
- The operands for the current operation can be highlighted
- There are 3 different themes: black, gray and gold
- The speed of the animations can be set
- Different interface on iPhone and iPad
- Works in portrait and landscape orientation on the iPad
- Open worksheets of up to 10 problems that are made on the iDevBooks.com site

Other iDevBooks math apps

iDevBooks math apps have been reviewed and endorsed by Wired.com, IEAR.org, Edudemic.com, Teachers with Apps, and other respected sites and organizations.

Some of the other 24 iDevBooks math apps are Column Addition, Long Multiplication, Long Division, Column Subtraction, Visual Multiplication Table, Partial Differences Subtraction, Partial Quotients Division, Partial Sums Addition, Decimal Rounding, etc.

Feedback and requests for new features

New ideas to make this app better are welcome. Please visit idevbooks.com to give feedback.

Privacy

This app has no ads or in-app purchases and it does not transmit any data during the operation of the app. This app also does not contain any links to other apps or the web.

What's New in Version 5.0

- open worksheets from app (new worksheets can be made on the iDevBooks.com site)
- support for iOS 10.0
- support for shared iPad in school environments

For more information about worksheets and other new features of this version please visit idevbooks.com. Please also get in contact if you have any feedback or you want information about 32 iDevBooks math apps.

Screenshots

iPhone Screenshot 1
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iPhone Screenshot 5
iPad Screenshot 1
iPad Screenshot 2
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iPad Screenshot 5
Lattice Multiplication
View in iTunes
This app is designed for both iPhone and iPad
  • $3.99 ea. (1-19 units)
    $1.99 ea. (20+ units)
  • Category: Education
  • Updated:
  • Version: 5.0
  • Size: 3.2 MB
  • Language: English
  • Seller:
Rated 4+
  • Made for Ages 9–11

Compatibility: Requires iOS 8.0 or later. Compatible with iPhone, iPad, and iPod touch.

Device-Assignable
Optimized for Shared iPad

Customer Ratings

We have not received enough ratings to display an average for the current version of this application.
All Versions: