16. The PEG System 10 = hen papel 5 = hive libro 9 = vine uvas 4 = door feo 8 = gate libro 3 = tree boligrafo 7 = lake cuaderno 2 = shoe calle 6 = sticks lapiz 1 = bun perro
17.
18. Mnemonic devices increase your ability to recall information. They should be abandoned as soon as you know the material so well that you do not need them.