Public learning track
Three-Dimensional Solids: Nets, Views, and Cross-Sections
4th Grade · Math · Open Global Math
8 lessons
Goal
Classify 3D solids, analyze faces, edges, vertices, cross-sections, and unfolding nets, and construct composite 3D shapes from multiple viewing perspectives.
Featured Diagrams
Describing 3D Shapes Using Faces, Edges, and Vertices
8 lessons
0 of 8 done
- 1Describing 3D Shapes Using Faces, Edges, and VerticesUp nextStart
- 2Classifying Prisms and Pyramids by Base ShapePremiumNot started yet
- 3Matching Nets to Prisms, Cylinders, and PyramidsNot started yet
- 4Geometric Nets of Pyramids and Right Circular ConesNot started yet
- 5Geometric Nets and Unfolding of Right Prisms and CylindersNot started yet
- 6Identifying 2D Cross-Sections of 3D SolidsNot started yet
- 7Viewing Perspectives: Front, Side, and Top Views of SolidsNot started yet
- 8Building and Analyzing Composite 3D StructuresNot started yet
Curriculum Framework
4th Grade · Math · Open Global Math
1
6 lessons
Points, Lines, Segments, Rays, and Geometric Primitives
Identify, draw, and define fundamental geometric primitives including points, lines, segments, rays, parallel and perpendicular lines, midpoints, and bisectors.
2
8 lessons
Measuring, Drawing, and Classifying Angles
Understand angles as circular turns, measure and construct angles using a protractor and set square, and classify angles from acute to full revolutions.
3
6 lessons
Angle Properties and Additive Decomposition
Solve additive angle decomposition problems involving adjacent angles, angles on straight lines, angles around a point, and vertically opposite angles.
4
6 lessons
Classifying Triangles and Triangle Properties
Classify triangles by both side lengths and angle measures, understand that triangle interior angles sum to 180°, and solve for missing angles.
5
6 lessons
Quadrilaterals and Polygons: Hierarchy and Properties
Classify quadrilaterals based on side, angle, and parallel relationships, explore polygon classifications, and derive quadrilateral angle sums.
6
5 lessons
Circles: Parts, Radius, Diameter, and Chords
Identify and define key parts of a circle including center, radius, diameter, and chord, understand the relationship d = 2r, and construct circles.
7
8 lessons
Lines of Symmetry, Rotational Symmetry, and Transformations
Identify and draw line symmetry and rotational symmetry in 2D shapes, complete symmetrical figures across mirror lines, and recognize translations.
8
7 lessons
Coordinate Graphing, Bearings, and Directional Pathways
Plot and read coordinates in the first quadrant, navigate using 8 compass bearings and clock-face directions, and complete geometric polygons on coordinate planes.
9
8 lessons
Three-Dimensional Solids: Nets, Views, and Cross-Sections
Classify 3D solids, analyze faces, edges, vertices, cross-sections, and unfolding nets, and construct composite 3D shapes from multiple viewing perspectives.