Illuminations: Learning to Measure with Ladybug
Illuminations (National Council of Teachers of Mathematics)

The mathematical foci of this lesson are geometric concepts, location, navigation, direction, and spatial relationships and measurement concepts, using nonstandard units to measure a distance, and the iteration of units, measurement by using the same unit of measure repeatedly to determine the total.

Illuminations: Facing Up
Illuminations (National Council of Teachers of Mathematics)

In this lesson, students create a map of their face and practice locating different parts using the geometric and measurement concepts they have learned in previous lessons, including location, navigation, spatial relationships, and measurement with nonstandard units.

Illuminations: Working with Shapes
Illuminations (National Council of Teachers of Mathematics)

Students review basic geometric terms related to triangles.