Curated OER
Measurement: 2D and 3D
Students solve volume problems. For this geometry lesson, the class watches a video about clean water (link provided) and individuals compare the volume of different prisms, including an actual drinking glass. Extension activities...
Curated OER
What's My Rule for Sorting?
Students view objects sorted by one characteristic and name that characteristic. In this sorting rule lesson plan, students explore to find a new characteristic and write a description of that rule. In early grades the rule might be...
Curated OER
Two-Dimensional and Three-Dimensional Shapes
First graders explore 2-dimensional and 3-dimensional shapes. In this geometry instructional activity, 1st graders examine the attributes of 2 -dimensional and 3-dimensional shapes. They also create the shapes as they build models. This...
Curated OER
Shapes
Discuss the properties of 2D and 3D shapes in order to help learners understand the concept. Learners will participate in an interactive whiteboard lesson plan to develop understanding of 2D and 3D shapes.
Pennsylvania Department of Education
Creating Polygons
Students describe, make and compare polygons. In this creating polygons lesson, students identify properties of quadrilaterals and describe common features of two dimensional shapes.