Summary Children observe and interact with three-dimensional objects through everyday activities in the environment such as building blocks, reading books, playing balls, or doing puzzles. Learning 3-dimensional shapes is one of the geometry outcomes in Victoria's Essential Learning Standards. In my lesson plan, I focus on recognizing and naming familiar three-dimensional shapes by providing students with the Hunt for Three-Dimensional Shapes activity. This report will reflect the lesson plan on four points: • Key mathematical ideas and skills • Link to relevant teaching materials and understanding of the learning sequence • Teaching approaches, developing children's understanding, models and materials appropriate for the 'learning• How children learn math concepts1. Key Mathematics Ideas and SkillsThe purpose of this lesson is for students to learn about common three-dimensional solids by exploring a variety of objects in the environment and learn the geometric vocabulary of three-dimensional shapes. Additionally, students are encouraged to participate and practice teamwork through the shape hunt activity. It helps students improve skills such as visualizing, explaining, thinking, recording and drawing. Through the lesson, students are able to recognize and name familiar three-dimensional shapes such as sphere, cuboid, cube, pyramid and cone. The lesson plan is also a good opportunity for the student to review basic two-dimensional shapes such as the square. , triangle, rectangle and circle. It introduces students to the transformation of a two-dimensional representation into three-dimensional solids. Students will improve their knowledge of the relationship between two-dimensional and three-dimensional objects.2. Link to relevant curriculum......middle of article......ConceptsAccording to Van Hiele's theory, students understand the concept of three-dimensional shape through the first two levels of this theory Level 1: Recognition/VisualizationIn this lesson, students have many opportunities to use their visual skills to recognize basic two-dimensional shapes as well as objects in the environment that relate to three-dimensional shapes. At this level, students can use geometric language to describe and explain their knowledge of geometry. Level 2: AnalysisThis level is included in the shape hunting activity. Students begin to notice and recognize the attributes and properties of shapes and objects. However, Level 2 students still need more explanation about the relationships between objects and three-dimensional shapes or the relationships between two-dimensional shapes and three-dimensional shapes..