3D Cupcake Assembly Video for Students | February Valentine's Day Math Craft | Bulletin Board Ideas. This step-by-step assembly video is perfect for showing to your class so students clearly understand how to turn their flat cupcake into fun 3D pop-up versions that stand on their own. Designed for easy classroom use, this engaging math craft allows students to independently follow directions while creating an eye-catching finished product. If you need Cupcake templates for your students, take