The Designing Lessons that Develop Conceptual Understanding Grant (PK-5) supports elementary teachers in designing, implementing, and sharing engaging hands-on lessons to support students' conceptual understanding of mathematical concepts. This grant is particularly intended to support teachers of students who are underrepresented in STEM to create lessons that draw on students' linguistic and cultural assets. This grant could be used to fund materials, such as manipulatives, mathematics-related children's literature, etc. The expectation is that the recipient of the grant would share their lessons with other teachers, in their school/district, and beyond. Applicants must be PK-5 Teachers. The primary applicant must be a current (on or before the application deadline) Essential or Premium member of NCTM. Past recipients of this grant are not eligible to reapply. PK-5 lessons and activities should provide students with rich, challenging, relevant, and nonroutine experiences; be piloted in classrooms and revised as the project progresses; focus on the use of materials such as manipulatives, children's literature, etc.; and be used with students who are underrepresented in STEM with lessons that draw on their linguistic and cultural assets. Applicants must submit three letters of support from the participating school's principal, colleague, and one other professional contact (not related), confirming support for the project. Please visit the award's website for more information.