ALEX Classroom Resource


Predicting the Angle of a Bouncing Ball

  Classroom Resource Information  


Predicting the Angle of a Bouncing Ball


Content Source:

Type: Audio/Video


Using a small model, the CyberSquad tests various aiming points and learns about angles of reflection. They use this knowledge to escape a cave. The CyberSquad decides to slide the key along the ice until it bounces off the cave wall and travels to Jackie and Matt on the other side. 

Content Standard(s):
MA2019 (2019)
Grade: 4
24. Identify an angle as a geometric shape formed wherever two rays share a common endpoint.
Unpacked Content
Evidence Of Student Attainment:
  • Describe an angle.
  • Describe an angle's relationship to a circle.
Teacher Vocabulary:
  • Angle
  • Ray
  • Endpoint
  • Geometric shape
  • Vertex
  • Line
  • Point
  • Line segment
Students know:
  • Angles are geometric shapes formed when two rays share a common endpoint.
  • How to draw points, lines, line segments, and rays
Students are able to:
  • Identify an angle as two rays with a common endpoint.
Students understand that:
  • angles are geometric shapes made of two rays that are infinite in length and are measured with reference to a circle with its center at the common endpoint of the rays.
Diverse Learning Needs:
Essential Skills:
Learning Objectives:
M.4.24.1: Define degree, angle, ray, and vertices.
M.4.24.2: Recognize and draw shapes having specified attributes such as a given number of angles or a given number of equal faces.
M.4.24.3: Estimate angle measures using 45o, 90o, 180o, 270o, or 360o.
M.4.24.4: Identify angle, ray, and vertices.
M.4.24.5: Draw shapes to possess defining attributes.

Prior Knowledge Skills:
  • Build and draw shapes to possess defining attributes.
  • Compose two-dimensional shapes (rectangles, squares, trapezoids, triangles, half-circles, and quarter-circles).
  • Model partitioning circles and rectangles.
  • Decompose pictures made of simple shapes.
  • Identify squares, circles, triangles and rectangles.
  • Explore shapes or figures that can be decomposed into smaller equal parts.

Alabama Alternate Achievement Standards
AAS Standard:
M.AAS.4.24 Recognize and Identify angles in geometric shapes as larger or smaller.

Tags: angles, quadrilaterals
License Type: Custom Permission Type
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This resource is accompanied by a background reading passage and discussion questions.

2019 ALCOS correlation:

4.24.) Identify an angle as a geometric shape formed wherever two rays share a common endpoint.

  This resource provided by:  
Author: Michelle Frye