I’m always halving and doubling recipes which is easy until you get into the teaspoons and tablespoons. Once I committed these measurements to memory, I was golden.
There are 3 teaspoons in 1 tablespoon. Half of a tablespoon is 1 1/2 teaspoons.
There are 4 tablespoons in 1/4 cup. Half of a 1/4 cup is 2 tablespoons.