A math manipulative to promote understanding of the operations of addition and subtraction from first to third grade.
This math manipulative is a reprogramming of my Ten-Field and Hundred-Field with additional, enhanced features. I recommend using the app in the future instead of the Ten-Field or Hundred-Field. However, since the “old” apps are still widely in use and there are resources and literature available for the Ten-Field and Hundred-Field that are partly not compatible with the new design, I have decided to keep these apps available in the App Store as long as they remain functional.
This new app includes a
- Ten-Field,
- Twenty-Field, a
- Hundred-Field, and a
- Thousand-Field.
The functions are similar to those of the apps with the Twenty-Field and Hundred-Field. Additionally, the app includes new or modified features:
- The numbers can be changed in certain places by sliding down or up.
- The cover fields for each number can be individually slid up and down.
An answer for the task can be directly typed into the field with a check and help, or written with a stylus. - Subtraction tasks are represented by raised, animated tiles instead of previously crossed-out tiles.
- The field can be completely covered and uncovered. There is a flash view mode that briefly shows the field after each change.
- The bar with “Activities” is now at the bottom of the screen, making it easier to use while observing the effects.
- The exchange task when switching between addition and subtraction is displayed as an animation.
- You can switch between a Ten-Field, Twenty-Field, and Hundred-Field.
- The task created can be output via text-to-speech.
- There is a guided introduction to the app’s features.
- Actions can be recorded via video recording (e.g. to show the class calculation strategies)
- Screenshots of task configurations can be saved, labeled and printed, for example for calculation conferences.
Have fun experimenting and learning with the app!
Ideas for use
In a Task card , I am collecting teaching ideas for using the app (almost in german language, sorry). So far, these are more like rough ideas that will be further developed and refined, and they will also be supplemented with templates, interactive exercises, and explanatory videos. I would be very happy if others would also post their ideas on the board through the plus sign or use the comment function, creating a collection of exciting usage scenarios.
Only for iOS / macOS
The app is only available for apple devices. Online calculation fields with a slightly reduced range of functions that can be executed without installation are available here.