Solve subtraction problems and advance through themed
Students solve subtraction problems by moving numbers into correct positions. Problems increase in difficulty. Correct answers earn points and unlock themed levels. Incorrect answers are revisited until mastered.
Students solve arithmetic problems by dragging numbers into correct positions. Equations increase in difficulty. Incorrect answers are repeated until mastered. Kids progress through themed levels after 10 correct answers.
Measure vibrations and seismic data using built-in sensors. Record maximum acceleration and seismic intensity. Upload observations to a public database. View historical data and analyze motion patterns. Share recorded data with others.
