This short video and interactive assessment activity is designed to give fourth graders an overview of quadrilaterals.

This short video and interactive assessment activity is designed to give fourth graders an overview of reflective symmetry.

This short video and interactive assessment activity is designed to give fourth graders an overview of ellipses, trapezoids, rhombi, and polygons.

This short video and interactive assessment activity is designed to give fourth graders an overview of rotational symmetry.

This short video and interactive assessment activity is designed to give fourth graders an overview of tessellations.

This short video and interactive assessment activity is designed to teach fourth graders about determining unknown angles in composite figures.

This short video and interactive assessment activity is designed to give fourth graders an overview of the sum of the angles of a triangle.

This short video and interactive assessment activity is designed to teach fourth graders how to, given the perimeter, find the side length and area - squares.

This is a task from the Illustrative Mathematics website that is one part of a complete illustration of the standard to which it is aligned. Each task has at least one solution and some commentary that addresses important aspects of the task and its potential use.

This is a task from the Illustrative Mathematics website that is one part of a complete illustration of the standard to which it is aligned. Each task has at least one solution and some commentary that addresses important aspects of the task and its potential use.

This short video and interactive assessment activity is designed to give fifth graders an overview of simple figure patterns.

This short video and interactive assessment activity is designed to teach fifth graders about counting the number of perpendicular lines.

This short video and interactive assessment activity is designed to teach fifth graders about determining unknown angles within rectangles and squares.

This short video and interactive assessment activity is designed to give fifth graders an overview of quadrilaterals.

This short video and interactive assessment activity is designed to give fifth graders an overview of rectangles, squares, circles and triangles.

This short video and interactive assessment activity is designed to give fifth graders an overview of quarter-circles and semi-circles.

This short video and interactive assessment activity is designed to teach fifth graders about identifying basic 2d shapes in composite figures.

This short video and interactive assessment activity is designed to teach fifth graders about determining whether various shapes have lines of symmetry.

This short video and interactive assessment activity is designed to give fifth graders an overview of forming figures with cutouts.

This short video and interactive assessment activity is designed to teach fifth graders about identifying the properties of rectangles.