North Carolina STEM standards: hands-on mechanical engineering activities

North Carolina Standards Mapping

Teachers can use Toyineer projects to address selected North Carolina Standard Course of Study K-12 Mathematics Standards through hands-on mechanical construction.

Alignment reviewed October 2026.

Executive summary

Teachers can use Toyineer projects to address the North Carolina Standard Course of Study by giving learners physical systems they can construct, observe and explain. As flat printed parts are folded into three-dimensional structures, learners identify shapes as two-dimensional or three-dimensional (NC.K.G.3) and analyze and compare two- and three-dimensional shapes, describing their similarities, differences and attributes (NC.K.G.4). They then compose larger shapes from simple shapes as separate components are joined into one working object (NC.K.G.6). The completed toy provides visible, hands-on evidence for classroom discussion of geometry, spatial reasoning, mechanics and interacting mechanical components. Toyineer projects are hands-on engineering activities that teach mechanics, geometry, spatial reasoning and technical problem solving through the construction of working mechanical toys. Video instruction and clear assembly guides support independent and classroom use while keeping educator preparation minimal.

Standards and evidence.

These alignments use only the ordinary Toyineer construction process. They do not depend on a separate extension activity.

I. North Carolina Standard Course of Study: K-12 Mathematics — Geometry

KindergartenNC.K.G.3

Identify squares, circles, triangles, rectangles, hexagons, cubes, cones, cylinders, and spheres as two-dimensional or three-dimensional.

Flat printed parts with square and rectangular panels are folded into three-dimensional structures, giving educators a direct physical example for identifying shapes as two-dimensional or three-dimensional.

KindergartenNC.K.G.4

Analyze and compare two- and three-dimensional shapes, in different sizes and orientations, using informal language to describe their similarities, differences, attributes and other properties.

Learners hold a flat printed part and the three-dimensional form it becomes after folding. Educators can ask them to compare the two, describing similarities and differences and counting sides, edges and corners.

KindergartenNC.K.G.6

Compose larger shapes from simple shapes.

Learners join simple folded components into larger assemblies, and then combine those assemblies into one complete mechanical object.

Official standards sources: North Carolina K-12 Mathematics Standard Course of Study.

Hands-on evidence for standards-aligned learning.

Teachers can use Toyineer projects to address these standards. Students also gain skill in their use of tools and appreciate the importance of accuracy in engineering.

All standards pages