Yuav ua li cas ua ntawv polyhedrons?

2024 Tus sau: Sierra Becker | [email protected]. Kawg hloov kho: 2024-02-26 05:10

Daim ntawv yog cov khoom siv zoo heev los tsim cov qauv tsim thiab txawv txawv. Yog tias koj muaj kev txawj ntse thiab muaj peev xwm, koj tuaj yeem ua tus swan, lub tsev zoo nkauj, tsob ntoo Christmas, tulip thiab txawm tias ib tug nab los ntawm cov nplooj ntawv album. Tab sis daim ntawv polyhedrons - geometric duab peb-dimensional tsim nyog tau txais kev saib xyuas tshwj xeeb.

thawj kauj ruam los tsim ib lub polyhedron yog kev txhim kho kom raug

Txawm hais tias qhov pom tseeb tsis yooj yim ntawm cov txheej txheem tsim, nws muaj peev xwm ua tau peb-dimensional polyhedron thawj zaug. Ntxiv nrog rau qhov tshwj xeeb ntawm kev ua siab ntev thiab kev ua siab ntev, koj kuj yuav tsum paub tias nws yog raws li kev txhim kho kom raug ntawm cov duab kos. Txhua daim ntawv crafts, nrog rau cov duab geometric, yog tsim los ntawm kev txiav scan. Txawm li cas los xij, scanning tuaj yeem siv sijhawm ntau rau tus tsim qauv tshiab. Cov txheej txheem no yog nthuav thiab zoo siab heev, nws tsim nyob rau hauv ib tug neeg lub peev xwm ntawm spatial xav, lub siab cus ciav. Nrog kev xyaum tsis tu ncua hauv kev tsim cov ntawv crafts, koj yuav kawm sai sai yuav ua li cas rov tsim dua txawm tias nyuaj tsim ntawm koj tus kheej.

Tools formuaj tswv yim txheej txheem

Yuav ua kom daim ntawv polyhedron nrog koj tus kheej tes, koj yuav xav tau ib txheej ntawm cov cuab yeej hauv qab no:

• rooj xis nrog lub tiaj tiaj;
• teeb pom kev zoo;
• cov kua nplaum zoo (PVA pom zoo) thiab txhuam rau nws;
• tus cwj mem;
• tus kav ntev;
• paper (nyiam dua tuab).

Cov lus qhia ntxaws

1. Nws yog qhov zoo dua los pib nrog daim duab yooj yim tshaj plaws. Hauv geometry, qhov no yog lub voos xwmfab. Raws li koj paub, lub voos xwmfab muaj rau lub squares uas ua rau nws sab. Tam sim no koj tuaj yeem pib kos tus qauv cheb. Tsis txhob hnov qab txog cov ntawv tshwj xeeb sab uas koj yuav tsum tau tawm hauv thiaj li ua kom yooj yim rau cov ntawv nplaum polyhedrons. Siv cov kab ruaj khov los kos cov cheeb tsam yuav raug txiav, thiab cov kab dotted los kos cov nkhaus ntawm cov duab.
2. Tam sim no qhov cheb tuaj yeem txiav tawm siv txiab nkaus xwb raws cov kab khoom, tsis pom cov ntawv lo. Sab ntawm daim ntawv nrog cov kab kos ua ntej yuav yog sab hauv ntawm polyhedron. Cov npoo sab nrauv tuaj yeem pleev xim rau ntawm koj qhov kev txiav txim siab nrog cov xim ci, xim cwj mem lossis cwj mem-ntsuab.



3. Thaum txiav tawm daim duab, tuav koj tus kheej nrog tus cwj mem ballpoint thiab kos nws nrog tus pas ntsuas ntawm txhua qhov nkhaus ntawm lub voos xwmfab yav tom ntej. Txoj kev no yuav pab koj khoov daim ntawv yooj yim raws cov kab uas xav tau. Daim ntawv polyhedrons yog ib hom kev kos duab, yog li thaum tsim lawv, koj yuav xav tau kev ua siab ntev, kev xav thiab kev ua siab ntev.
4. Khoov daim ntawv daim duab raws tag nrho cov cimcov kab, siv cov txhuam hniav los siv cov nplaum rau sab tabs. Qhov tseem ceeb tshaj plaws yog daim ntawv nplaum kawg, uas nyob ntawm qhov hnyav ntawm daim ntawv xaiv.
5. Tom qab ua tiav cov kauj ruam yooj yim, cia lub qhov cub kom qhuav. Tsuas yog tom qab ntawd koj tuaj yeem mus rau qhov kawg ua tiav - pleev xim rau tus qauv. Daim ntawv hexagon npaj txhij!

Origami polyhedron

Lwm yam khoom siv tsis zoo nkauj tsawg yog origami ntawv polyhedrons. Txhawm rau tsim lawv, koj yuav xav tau 3 nplooj ntawv daj, xiav, liab thiab ntsuab ntawv.

1. Muab ib daim ntawv, piv txwv li ntsuab, thiab kos ib lub xwmfab ntawm nws ntsuas 11 x 11 cm. Thiab ces txiav nws nrog txiab. Txhua yam koj xav tau yog peb squares. Cov no yuav yog thawj kab ntawm koj cov polyhedron.



2. Ib yam li ntawd, tsim cov seem ntawm cov kab modular hauv cov xim sib txawv.
3. Muab ib lub square liab thiab quav nws ib nrab los ua ib daim duab plaub. Thiab ces nthuav nws. Tig lub square 90 degrees mus rau sab xis thiab quav hauv ib nrab dua. Nthuav cov qauv dua thiab quav nws tam sim no diagonally. Tshem tawm, tig 90 degrees mus rau sab xis thiab quav diagonally los ua ib daim duab peb sab. Qhib daim ntawv thiab tsim ib daim duab peb sab los ntawm qhov tshwm sim khoov.
4. Ua raws li txoj cai no, tsim 11 cov duab zoo sib xws.
5. Tam sim no koj tuaj yeem pib tsim lub polyhedron. Fasten lub modules, me ntsis nthuav tawm thiab muab tso rau saum ntawm txhua lwm yam kom ib tug peb-dimensional multifacetedkev tsim kho.

Tam sim no koj paub yuav ua li cas ua ib daim ntawv polyhedron. Kev sim, xyaum - thiab sai sai koj yuav dhau los ua tus tsim txiaj hauv daim duab kos duab tshwj xeeb no!