INNOVATIVE flash card system for teaching elementary math and basic arithmetic(addition, subtraction, division and multiplication), inspired in the Montessori method of learning numbers and conceptual counting.JUMBO SIZE - 5⅝ x 3⅝ inch color magnetic vinyl cards. Simple font. Bright high contrast colors. Large, Sturdy, durable, non-toxic and kid safe. Perfect for using on whiteboards or dry erase boardsIDEAL MATH FLASH CARDS FIRST AND SECOND GRADE, but also for educational and stimulation activities of toddlers, early learning, kindergarten and preschool (pre k)NUMBERS HAVE DISTINCT CHARACTERISTICS Reducing confusion and facilitating number recognition, even for learners suffering dyslexiaFLEXIBLE & ADAPTABLE as a teaching aid for parents and school teachers. A practical alternative/companion to the ten frame method, tens blocks counters, base ten, or the traditional counting abacus.