Classroom Resource

What's a Rectangle: Sesame Street

Subject Area

Mathematics

Grade(s)

K

Overview

Two-Headed Monster has arrived to demonstrate the rectangle shape. The problem is, they don't seem to know what a rectangle looks like. Instead, they pull out two triangles. They discover, however, that two triangles can be used to make one rectangle. This resource teaches shapes.

Mathematics (2019) Grade(s): KG

MA19.K.21

Analyze and compare two- and three-dimensional shapes, in different sizes and orientations, using informal language to describe their similarities, differences, parts (number of sides and vertices or corners“) and other attributes.“

Unpacked Content

UP:MA19.K.21

Vocabulary

  • Attributes

Knowledge

Students know:
  • attributes of shapes (sides, corners, vertices, faces, edges, etc.).
  • Informal language to describe these components.

Skills

Students are able to:
  • Use geometric reasoning and attributes to compare and contrast a variety of shapes.

Understanding

Students understand that:
  • geometric shapes can be grouped into classes of shapes that all seem to be alike based on their visual characteristics.
Mathematics (2019) Grade(s): KG

MA19.K.23

Use simple shapes to compose larger shapes.

Unpacked Content

UP:MA19.K.23

Knowledge

Students know:
  • 2D and 3D shapes (triangle, square, rectangle, hexagon, rhombus, circle, cube, cylinder, sphere, cone).

Skills

Students are able to:
  • Combine simple shapes to form larger shapes.

Understanding

Students understand that:
  • geometric shapes can be composed of and decomposed into smaller shapes.
Link to Resource
https://aptv.pbslearningmedia.org/resource/sesame-whats-a-rectangle/whats-a-rec…

Resource Provider

PBS
Accessibility
License

License Type

CUSTOM

Custom License Type (URL)

https://www.pbslearningmedia.org/help/terms-of-use/#restrictions

Comments or Notes

2019 ALCOS

21. Build and draw shapes which have defining attributes.
a. Distinguish between defining attributes and non-defining attributes.
Examples: Triangles are closed and three- sided, which are defining attributes; color, orientation, and overall size are non-defining attributes.

22. Compose two-dimensional shapes (rectangles, squares, trapezoids, triangles, half-circles, and quarter-circles) or three-dimensional shapes (cubes, right rectangular prisms, right circular cones, and right circular cylinders) to create a composite shape, and compose new shapes from the composite shape.

Approved Date

mfrye
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