Big Thinkers First Grade is a game in the Big Thinkers series. Ben and Becky Brightly teach children sixteen lessons. These lessons are comprised of Computation, Addition and Subtraction, Reading: Nouns and Verbs, Fractions, Time Telling, Phonics, Spelling, Environmental Science, Geography & Directions, Life & Physical Sciences, Thinking Skills, Spatial Perception, Art Creativity and Music Creativity. Source: The Developer Website.