Make flash cards for the Spanish words for the first 10 counting numbers. From one to 10, the numbers are uno, dos, tres, cuatro, cinco, seis, siete, ocho, nueve, diez. Make a set of cards that are the English numbers, the Spanish numbers and also a set of items that you count and say the Spanish number.
Sing a song about the numbers. Music can help one learn. When you have to repeat the ABCs, you sing the song. Change the words to a familiar counting song to the numbers and words in Spanish. "One little, two little, three little leapfrogs," turns into, "Uno, dos, tres ranas pequenas." (One, two, three little frogs is the translation for this Spanish version.)
Practice counting the numbers by counting the spots on the dominoes. You will need to learn eleven, once, and twelve, doce, to be able to count the complete set of dominoes. Play a game of dominoes using only the Spanish name for the numbers.