About this app
適用年級：小四或以上 小朋友可在方格紙上製作四邊形，程式能從邊和角的特性，辨別這個四邊形的種類，並利用公式計算它的周界和面積。 培生香港製作不同的數學工具，供教師於課堂教學或學生課餘自學之用。
Latest release
What’s New
Version 1.0.0
Jul 27, 2015
此次 Apple 更新將改進此 App 的功能。未包含任何新功能。
Audience growth
Ratings growth
7-day gain
+0
Ratings / day
0.0
30-day gain
+0
Baseline captured. Growth appears after the crawler observes a changed rating count.
Momentum comes from crawler snapshots for the tracked storefront. “Viral growth signal” means unusually fast recent rating gains; it is an indicator, not download data.
Price tracking
Price intelligence
Current
Free
Historical low
Free
Paid → free
0×
First snapshot captured. The trend line starts after the next crawler price observation.
- First observed Aug 19, 2026 · 12:37 PM Free
Screenshots
