My Library (LCSD) vs e+正方形和長方形

"My Library" (the app), developed and maintained by the Leisure and Cultural Services Department (LCSD) of the Hong Kong Special Administrative Region Government, provides a safe and convenient channel to access the services of the Hong Kong Public Libraries. Through the app, members of the public can: > access to and Management of multiple library accounts > viewing of transaction history > search, reserve and renew library materials > save and retrieve library materials in My Lists > check the addresses and opening hours of public libraries > locate the nearest libraries via GPS > use personalised alert services to receive notifications, including pick-up notices and due date reminders > search library materials by scanning the ISBN barcode > share the information of library materials to friends through e-mail, instant messaging tools and social sharing platforms > paying overdue fines and reservation fees by mobile payment services Personal Information Collection Statement 1. The personal data collected in the app will only be used for processing your library account or handling your enquiry. 2. The personal data required in the app include your library card number/Hong Kong identity card number and your library account password. Whether you store your personal data in the app is optional. If you have logged in with your Hong Kong identity card number, it will be converted and saved as a library card number. 3. The app will collect the device model, system version, usage and login records as general statistical data for helping the LCSD compile statistics or diagnosing system problems, so as to enhance the app and facilitate your use of our library services. 4. The app will obtain your location data via GPS and show you the nearest public libraries and any related information. Your location data will not be saved in the app. 5. The function of direct phone calling to branch libraries is provided in the app, but it will not collect any personal data. 6. The personalized library information notification service provided in the app will send the identifier of your device together with your alert messages to Apple Inc., from whom the messages will be pushed to your device. 7. The social media sharing function for library item information provided in the app will not release your personal data to any external parties. However, the privacy policy for handling personal data from other social media is beyond the control of LCSD and LCSD would not accept any joint liability. 8. The Leisure and Cultural Services Department (LCSD) is committed to ensuring that all personal data provided through the app is handled in accordance with the relevant provisions of the Personal Data (Privacy) Ordinance. For details about the privacy policy of the LCSD, please refer to the website at the following URL: http://www.lcsd.gov.hk/en/info_pdo.php

利用工具，找出計算正方形和長方形的周界或面積的方法。 「現代教育研究社」研發了一系列教學工具及趣味App，以協助老師於課堂中進行建構數學概念的活動，同時也可讓學生在家中作自學之用。