* The application targets primary education 1st level.
* The application contains nearly 100 opposite concepts.
* Concepts are presented in multiple choice test format.
* The application consists of 20 tests.
*Tests can be solved repeatedly until concepts are consolidated.
* The application contains nearly 100 opposite concepts.
* Concepts are presented in multiple choice test format.
* The application consists of 20 tests.
*Tests can be solved repeatedly until concepts are consolidated.
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