ClassFlow
Class Flow: 2 D and 3 D Shapes
[Free Registration/Login Required] This flipchart explains 2-D and 3-D shapes.
CK-12 Foundation
Ck 12: Interactive Geometry: 9.5 Modeling in Three Dimensions
Explore connections between a 2-dimensional net and a 3-dimensional box. Later in this section, use equations with variables to solve real world problems that use 2 and 3-dimensional objects.
PBS
Pbs Learning Media: Math + Arts: Shapes Into Sculptures
In this lesson, students will identify 2- and 3-dimensional shapes as well as create shape drawings and sculptures. Teacher materials are available.
Louisiana Department of Education
Louisiana Doe: Louisiana Believes: Eureka Math Parent Guide: Two Dimensional and Three Dimensional Shapes
A guide to support parents as they work with their students with two-dimensional and three-dimensional shapes.
Khan Academy
Khan Academy: Cross Sections of 3 D Objects (Basic)
Match 3D objects with their 2D cross-sections. Students receive immediate feedback and have the opportunity to try questions repeatedly, watch a video or receive hints.
Khan Academy
Khan Academy: Cross Sections of 3 D Objects (Basic)
Basic practice problems involving cross sections of 3D objects.