You could check out Burn Math Class: https://www.amazon.com/Burn-Math-Class-Reinvent-Mathematics/dp/0465053734#reader_B017QL8UHU https://www.amazon.com/Burn-Mat

You could check out Burn Math Class: https://www.amazon.com/Burn-Math-Class-Reinvent-Mathematics/dp/0465053734#reader_B017QL8UHU https://www.amazon.com/Burn-Math-Class-Reinvent-Mathematics/... or Calculus Made Easy: https://www.math.wisc.edu/~keisler/keislercalc-09-04-19.pdf https://www.math.wisc.edu/~keisler/keislercalc-09-04-19.pdf