Lesson Plan
Curated OER

Pattern Using Unit Cells

For Teachers 7th - 12th
Students explore the pattern of the unit cell. For this science lesson, students color the unit cells on a worksheet and create a pattern using unit cells.
Lesson Plan
Curated OER

Building Paper Bridges

For Teachers 9th - 12th
Students construct a bridge that can hold 100 pennies. In this math instructional activity, students evaluate the strength of their bridges. They predict how much weight a bridge can hold based on its design.
Lesson Plan
Curated OER

Similar or Not?

For Teachers 5th
Fifth graders define the meaning of similar and congruent using concrete objects. They make similar and congruent figures using geoboards. They draw their figures on dot paper, and color their designs.
Lesson Plan
Illustrative Mathematics

Illustrative Mathematics: G Co.6 Symmetries of a Circle

For Teachers 9th - 10th
Suppose C is a circle with center O. Find all lines of symmetry of the circle and explain why the list is complete. Aligns with G-CO.A.
Lesson Plan
Illustrative Mathematics

Illustrative Mathematics: G Co Why Does Asa Work?

For Teachers 9th - 10th Standards
In triangles ABC and ABD, we are given that angle BAC is congruent to angle BAD and angle ABC is congruent to angle ABD. Show that the reflection of the plane about line AB maps triangle ABD to triangle ABC. Aligns with G-CO.B.8.
Lesson Plan
University of Texas

Inside Mathematics: Fair Play [Pdf]

For Teachers 3rd - 5th Standards
This task challenges a student to demonstrate understanding of the concept of measurement.
Lesson Plan
Illustrative Mathematics

Illustrative Mathematics: 4.g Lines of Symmetry for Quadrilaterals

For Teachers 3rd - 5th Standards
This task provides students a chance to experiment with reflections of the plane and their impact on specific types of quadrilaterals. Aligns with 4.G.A.3.