# Which One Doesn't Belong: Fourth & Fifth Grade

Grades 4-5 / Math / Tch DIY
CCSS: Math.4.G.A.2 Math.4.G.A.3

Common Core State Standards

 Math Math 4 Grade 4 G Geometry A Draw and identify lines and angles, and classify shapes by properties of their lines and angles 2 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. Recognize right triangles as a category, and identify right triangles. Download Common Core State Standards (PDF 1.2 MB)

Common Core State Standards

 Math Math 4 Grade 4 G Geometry A Draw and identify lines and angles, and classify shapes by properties of their lines and angles 3 Recognize a line of symmetry for a two-dimensional figure as a line across the figure such that the figure can be folded along the line into matching parts. Identify line-symmetric figures and draw lines of symmetry. Download Common Core State Standards (PDF 1.2 MB)

A "Which One Doesn't Belong" routine encourages students to reason about the similarities and differences among a set of numbers, expressions, shapes, or images.

Tch visited Kristin's Gray's school. Watch the video.

Common Core Standards
Math.4.G.A.2, Math.4.G.A.3