The GPS operation method of Montessori sensory education specifically refers to the teaching method of sequence, pairing and classification. Montessori sensory education teaching activities and the use of GPS (sequence, pairing and classification) teaching methods, natural and orderly abstract symbols, through repeated operation of teaching AIDS, enable children to acquire the concepts of number and quantity, and then enter the four operations to cultivate their awareness of logical thinking. Montessori's sensory education begins with the understanding of continuous quantity with the help of several sticks, which can let children compare the quantity intuitively.