Texas Assessments Standards (STAAR)
TX.STAAR.4. STAAR Grade 4 Mathematics Assessment
Reporting Category 3: Geometry and Spatial Reasoning - The student will demonstrate an understanding of geometry and spatial reasoning.
(4.8) Geometry and spatial reasoning. The student identifies and describes attributes of geometric figures using formal geometric language. The student is expected to:
4.8 (A) Identify and describe right, acute, and obtuse angles. Supporting Standard (STAAR)
4.8 (B) Identify and describe parallel and intersecting (including perpendicular) lines using concrete objects and pictorial models. Supporting Standard (STAAR)