ɚɹˈaʊnd ðə wˈɜːld, ˈæbɐkəsᵻz hɐvbɪn jˈuːzd ɪn pɹˈiːskˈuːlz ænd ˌɛlɪmˈɛntɚɹi skˈuːlz æz ɐn ˈeɪd ɪn tˈiːtʃɪŋ ðə nˈuːmɚɹəl sˈɪstəm ænd ɚɹˈɪθmətˌɪk.
Around the world, abacuses have been used in pre-schools and elementary schools as an aid in teaching the numeral system and arithmetic.