4.MATH.6.B
Identify and draw one or more lines of symmetry, if they exist, for a two-dimensional figure.
Grade 4 · Texas Essential Knowledge and Skills (TEKS) · TEKS 2012
Standard Unwrapping
AI-generated as a starting point — sign in to edit.Vocabulary
lines of symmetryfiguretwo-dimensional figure
Skills
- identify (lines of symmetry in two-dimensional figures) #dok1
- draw (lines of symmetry for two-dimensional figures) #dok2
- analyze (whether a two-dimensional figure has lines of symmetry) #dok2
Learning Targets
- I can identify lines of symmetry in a two-dimensional figure. #dok1
- I can draw one or more lines of symmetry for a two-dimensional figure if they exist. #dok2
- I can analyze a two-dimensional figure to determine if it has lines of symmetry. #dok2
Big Ideas
- Many two-dimensional figures can be divided into two identical parts by lines of symmetry.
- Not all two-dimensional figures have lines of symmetry, and some figures may have more than one.
Essential Questions
- What is a line of symmetry in a two-dimensional figure?
- How can you decide if a two-dimensional figure has lines of symmetry?
- Can a figure have more than one line of symmetry? Why or why not?
- How do you draw a line of symmetry accurately for a given figure?
- Why might some figures have no lines of symmetry?