apps / 575736731
Calculation Triangle
Education
Christian Urff · Education · $0.99 · US storefront
- rating
- 3.0 ★
- ratings
- 1
- updated
- Jun 9, 2017
- released
- Nov 9, 2012
v1.3
visible word pool · 3 words
title 20/30 chars · subtitle 9/30 chars
App Store search indexes the title and subtitle together with the hidden 100-character keyword field as one combined pool: any phrase assembled from those words can rank. These are the words of Calculation Triangle's pool that are public — the keyword field is not exposed by any API.
from the listing
This virtual manipulative encourage the development of flexible arithmetic thinking. Watch a video of the app: http://www.youtube.com/watch?v=iN3b20F6UC8 A calculation triangle is splited into three fields. Each field can contain tokens. On each edge the sum of the two corresponding fields is written. And this is how it works: Touch with you fingers on a field to produce tokens and move them from one field to another. Move tokens out of the triangle to delete them. Close the…
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