4.MATH.6.D
Classify two-dimensional figures based on the presence or absence of parallel or perpendicular lines or the presence or absence of angles of a specified size.
Grade 4 · Texas Essential Knowledge and Skills (TEKS) · TEKS 2012
Standard Unwrapping
AI-generated as a starting point — sign in to edit.Vocabulary
two-dimensional figuresparallel linesperpendicular linesanglesangles of a specified sizepresenceabsence
Skills
- classify (two-dimensional figures based on parallel or perpendicular lines) #dok2
- classify (two-dimensional figures based on the size of angles) #dok2
- recognize (presence or absence of parallel lines in two-dimensional figures) #dok1
- recognize (presence or absence of perpendicular lines in two-dimensional figures) #dok1
- identify (angles of a specified size in two-dimensional figures) #dok1
Learning Targets
- I can recognize parallel and perpendicular lines in two-dimensional figures. #dok1
- I can identify angles of a specified size within two-dimensional figures. #dok1
- I can classify two-dimensional figures based on the presence or absence of parallel lines. #dok2
- I can classify two-dimensional figures based on the presence or absence of perpendicular lines. #dok2
- I can classify two-dimensional figures based on the presence or absence of angles of a specified size. #dok2
Big Ideas
- Two-dimensional figures can be sorted and described using the types of lines and angles they contain.
- Noticing parallel and perpendicular lines and angle sizes helps us group and understand shapes in geometry.
Essential Questions
- How do the lines and angles in a two-dimensional figure help us classify the shape?
- What makes two lines parallel or perpendicular in a shape?
- How does the size of an angle affect how we describe or group a two-dimensional shape?
- Why is it useful to sort two-dimensional figures by the lines and angles they have?
- How can you use what you know about lines and angles to compare different shapes?