for class 3 stem projet work math
Answer: Class 3 STEM Project: 'Building a Geometric 3D House' using a cube base (6 faces, 12 edges, 8 vertices) and a triangular prism roof (5 faces, 9 edges, 6 vertices) to understand spatial shapes and structure.
Step-by-step solution
Step 1: Identify 2D and 3D shapes in real life
In this project, students explore how flat 2D shapes combine to create solid 3D structures. The main living space is modelled as a cube or cuboid, while the roof forms a triangular prism or pyramid. Observing everyday objects helps connect abstract geometric concepts to real-world architecture.
Step 2: Analyze the properties of the cube base
A cube consists of 6 identical flat square faces. Any two faces meet at a straight line called an edge, giving 12 edges in total. The sharp corners where 3 edges meet are called vertices, giving 8 vertices.
Step 3: Construct the model and record project data
Students can use craft sticks and clay balls, or folded cardstock paper nets to assemble the house. By recording the count of faces, edges, and corners in a project observation table, students develop key data recording and spatial reasoning skills.