If the basic arithmetic (GRA +) ADD, SUB, MUL, DIV will not be repeated again and again in the early stages, the mathematical foundation will always be uncertain.
Therefore you win by the GRA + APP no frills with the Fehlerananalyse as protocol security in mental arithmetic.
By the targeted setting the number spaces (lower limit UG / OG upper limit), the exercises can be adjusted individually.
Since I do not want to finance with advertising my programming, there is this cheap priced GRA + app that logs the exercises.
The protocol used for error analysis:
- transposed digits are recognized
verify trouble regrouping -
- recognize temporal improvements
- loss of concentration when occur in the final part heaped error
Therefore you win by the GRA + APP no frills with the Fehlerananalyse as protocol security in mental arithmetic.
By the targeted setting the number spaces (lower limit UG / OG upper limit), the exercises can be adjusted individually.
Since I do not want to finance with advertising my programming, there is this cheap priced GRA + app that logs the exercises.
The protocol used for error analysis:
- transposed digits are recognized
verify trouble regrouping -
- recognize temporal improvements
- loss of concentration when occur in the final part heaped error
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