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描述
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
R. 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
- The speed of the animations can be set
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.
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.
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價格歷史
- 目前價格： $3.99
- 最小值: 免費
- 最大值: $3.99
追蹤票價
AppAgg 評價
5,520
AppAgg 預估評價：
Lattice Multiplication
5,520 白銀
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縮短網址: 已複製!
新功能
- 版本: PC
- 最後更新:
其他資訊
- 發行日期:
- 類別 :
Windows 應用程式›教育 - OS:
PC,Surface Hub - 大小:
38 Mb - 支援的語言 :
English - 內容分級:
EVERYONE - Windows Store 評分:
0 - 個人網站:
https://idevbooks.com
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- iDevBooks
- 平台: Windows 應用程式 (27)
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簡要
Lattice Multiplication 縮短網址: 已複製!- 🌟 分享
- Windows Store
«Lattice Multiplication». 平台： Windows. 類別： 教育. 開發商： «iDevBooks». 首次發布： . 最後更新： . 目前價格： $3.99. 最低記錄價格： $0.00 (). 最高記錄價格： $3.99 (). 此項目尚未在 AppAgg 上獲得評分或評論。 列表: 公開: 1, 私人: 0. 可用語言： English. AppAgg 會追蹤 «Lattice Multiplication»的價格歷史、評分和用戶回饋。 AppAgg 不託管應用程式或分發軟體。 所有商標、標誌和螢幕截圖均屬於其各自所有者。 關注未來折扣和更新： RSS
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