Students explore flat shapes and learn to classify them by their attributes — the number of sides, the angles, and which sides run parallel.
Students will be able to…
A square and a rhombus both have four equal sides — so what makes them different? Shapes are sorted by their attributes, not just their looks.
Project this and tap each shape. Have students record the number of sides and angles and one special attribute for each.
Tap any phase to open the teacher moves and student actions.
A square and a rhombus — what’s the difference?
Teacher describes a shape.
Class drives the Shape Explorer.
Students classify shapes.
Classify one shape together.
Aligned to the Common Core State Standards for Mathematics, including the Standards for Mathematical Practice.
Understand that shapes in different categories may share attributes; recognize rhombuses, rectangles, and squares as examples of quadrilaterals.
Classify two-dimensional figures based on parallel or perpendicular lines and angle size.
Draw and identify points, lines, rays, angles, and parallel and perpendicular lines.
Look for and make use of structure when classifying shapes.
Preview the three formative checks. Tap “Sample answer” to see what mastery looks like — hide them before you print for students.
Have students arrange quadrilaterals in a family tree — showing how a square fits inside “rectangle,” “rhombus,” and “quadrilateral.” A printable hierarchy template is in the Math library.
Tap a card to flip it, then rate whether you knew it. Built from this lesson’s vocabulary.
A quick self-check with instant feedback, drawn from this lesson’s key terms.
A print-and-go review sheet with a built-in answer key. Tap “Show answer key” to reveal answers, or print the clean version for students.