About this app
This app was designed at the request of elementary teacher candidates to facilitate the interaction between their students and the candidates while students illustrated two different number sentences with the same target sum using combinations of 2 or 3 addends. Determine a target sum and then drag chips in various combinations into the work area to represent that number. The blue work area is divided so that one representation is on the top half and the other is on the bottom. The columns are used to place chips for each addend. The "Color" button will display a new set of chips all with the SAME COLOR, but with DIFFERENT SHAPES. The "Shape" button will display a new set of chips all with the SAME SHAPE, but with DIFFERENT COLORS.
Latest release
What’s New
• Updated to support iOS12 - thank you for your patience. • A few other minor tweaks • As time allows, I'd enjoy hearing how you're using this app in the classroom and at home.
Audience growth
Ratings growth
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
First snapshot captured. The trend line starts after the next crawler price observation.
- First observed Aug 12, 2026 · 4:54 PM Free
Screenshots
