Unit 1:
Week 1: a, can, and, come, are, for, big, go, has, I
Week 2: have, is, jump, my, one, put, the, want, what, you
Week 3: he, like, little, no, of, saw, this, to, we, with
Unit 2:
Week 1: about, because, here, look, me, play, said, see, she, try
Week 2: after, before, call, do, earth, father, give, her, know, large
Week 3: good, many, near, off, people, right, that, two, under, very
Unit 3:
Week 1: again, below, carry, does, eight, find, house, laugh, mother, school
Week 2: move, never, once, round, small, their, too,walk, where, year
Week 3: all, away, better, by, change, done, even, found, learn, only
Unit 4:
Week 1: long, now, our, some, them, through, upon, was, when, work
Week 2: always, any, blue, buy, city, draw, four, great, how, live
Week 3: another, boy, could, every, far, from, hurt, over, out, these
Unit 5:
Week 1: answer, brown, country, start, then, there, wash, went, who, your
Week 2: above, began, different, enough, few, grow, they, were, which, why
Week 3: follow, girl, head, idea, kind, leave, might, next, often, paper
Unit 6:
Week 1: point, river, second, song, think, three, until, watch, white, young
Week 2: add, between, close, example, food, group, hear, home, left, mountain
Week 3: music, night, old, picture, sentence, spell, thought, together, while, world
Unit 7:
Week 1: air, along, begin, children, important, letter, open, own, sound, talk
Week 2: almost, animal, around, body, color, eye, form, high, light, story
Week 3: across, become, complete, during, happened, hundred, problem, toward, study, wind
Unit 8:
Week 1: against, certain, door, early, field, heard, knew, listen, morning, several
Week 2: area, ever, hours, measure, notice, order, piece, short, today, true
Week 3: covered, cried, figure, horse, money, products, questions, since, usually, voice
Unit 9:
Week 1: able, behind, carefully, common, easy, fact, remember, sure, vowel, whole
Week 2: ago, government, half, machine, pair, quickly, scientist, thousand, understood, wait
Week 3: among, building, circle, decided, finally, heavy, include, nothing, special, wheel
Unit 10:
Week 1: brought, contain, front, gave, inches, material, noun, ocean, strong, verb
Week 2: built, correct, inside, island, language, person, street, system, warm
Week 3: dark, clear, explain, force, minutes, object, plane, power, produce, surface