1. Cov cwj mem tawv: ua raws li kev sau ntawv ntawm cov cwj mem tawv xws li cov cwj mem, cov cwj mem ballpoint, thiab chalk.Vdink pizarra lcd sib tham sib tiaj tus vaj huam sib luag tso saib ntse board rau tsev kawm ntawv
2. Cov cwj mem mos: Nws ua raws li kev sau ntawv ntawm tus txhuam hniav, uas tuaj yeem piav qhia txog kev mob stroke thiab qhov tseem ceeb ntawm kev sau ntawv.Vdink pizarra lcd sib tham sib tiaj tus vaj huam sib luag tso saib ntse board rau tsev kawm ntawv
3. Laser Pointer: Kos cov neeg tuaj saib los ntawm kev hloov xim qhov tob, thiab cov ntawv sau yav dhau los yuav tsis ploj mus txog thaum tus neeg siv ua haujlwm tom ntej.Vdink pizarra lcd sib tham sib tiaj tus vaj huam sib luag tso saib ntse board rau cov tsev kawm ntawv

2022.09.13