Abacus yog Roman qhov qauv ntawm Lavxias cov nyiaj, lawv qhov txawv tseem ceeb yog tias peb lub pob zeb tsis yog tsau rau ntawm cov xov hlau (xws li hauv Lavxias cov nyiaj), lawv tau siv rau ntau hom kev suav. Tam sim no, menyuam yaus kawm abacus hauv tsev kawm ntawv theem pib, thiab ntau tus niam txiv tsis txaus ntseeg los ntawm kev thov ntawm cov menyuam yaus los ua qhov abacus. Qhov tseeb, koj tsuas yog xav tau sijhawm me ntsis thiab ob peb lub tswv yim xwb.
Nws yog qhov tsim nyog
- - tuab ntawv lossis duab los qhia;
- - tus pas ntsuas;
- - xaum;
- - koob qhia kev;
- - riam stencil (riam ntawv);
- - kua nplaum;
- - xim ntawv;
Cov Lus Qhia
Kauj ruam 1
Tshaj tawm ib qho me me ntawm hnyav cov ntawv los yog duab los qhia thoob plaws peb kab ntawv. Thov nco tseg tias cov kab ntawv yuav tsum yog tib txoj kab. Lawv yuav sawv cev ntawm thawj peb tus lej ua lej: ib, kaum thiab ntau pua.
Kauj ruam 2
Hauv txhua ntawm peb kab ntawv, txiav 10 xwmfab lossis ncig qhov ntawm qhov loj me tib yam. Txhawm rau kom lub abacus zoo huv si, khij ua ntej qhov twg koj yuav txiav qhov thiab qhov loj me uas lawv yuav ua. Yog tias koj txiav txim siab ua lub qhov nyob puag ncig, koj yuav xav tau ib khub txuas ntxiv rau kev kos cim.
Kauj ruam 3
Los ntawm hauv qab no, koj yuav tsum siv kua nplaum lossis xaws rau ntawm cov ntawv muaj xim, nws yuav tsum sib piv nrog cov xim tseem ceeb ntawm daim duab los yog daim ntawv los ntawm qhov koj ua tus abacus, kom qhov txiav qhov pom meej meej rau nws keeb kwm yav dhau los. Thov nco ntsoov tias koj tsis tas yuav siv cov ntawv muaj xim tag nrho, tab sis tsuas yog ua raws cov npoo ntawm kab ntawv, kom muaj qhov sib txawv me me hauv txhua kab ntawm qhov.
Kauj ruam 4
Txiav peb kab ntawv txiav tawm ntawm cov duab los qhia kom lawv haum rau hauv qhov sib txawv koj tshuav ntawm cov hauv paus thiab cov ntawv thas xim. Qhov no yog qhov tsim nyog thiaj li, los ntawm kev thawb tawm lossis tshem tawm cov kab txaij no, qhov yuav tsum muaj ntawm cov qhov qhib hauv txhua tus lej thiab, yog li, qhia cov lej ntau.
Kauj ruam 5
Raws li cov qauv zoo sib xws, ib qho abacus tuaj yeem tsim, uas yuav qhia tsis yog peb pawg lej: ntau, kaum thiab ntau pua, tab sis kuj ntau txhiab. Txhawm rau ua qhov no, koj tsuas yog yuav tsum tau ua nyob rau hauv lub hauv paus no tsis yog peb, tab sis plaub kab ntawv nrog cov qhov, thiab, raws li, 4 cardboard rulers.
Kauj Ruam 6
Yog tias koj ua abacus rau menyuam, siv daim npav ntsej muag kom ruaj khov kom nws tsis deform ntau yog siv tsis nco qab. Kuj, kom yooj yim, nws yog qhov zoo dua los coj daim npav ntawm cov xim sib txawv, i.e. lub hauv paus ntawm lub abacus yuav tsum nyob hauv ib qho xim, hauv qab (daim ntawv tha xim) hauv lwm qhov, thiab cov kav hauv ib feem peb, thiab lawv yuav tsum sib txawv nrog txhua lwm. Qhov no yuav ua kom yooj yim dua rau koj tus menyuam kom nkag siab tias qhov abacus ua haujlwm li cas thiab nws ua haujlwm li cas.
