Research Based Curriculum Development
LMR’s research-based approach to curriculum development addresses three concerns that have been frequently raised about elementary mathematics materials.

Mathematically Coherent Curriculum Design
Many curriculum units treat integers and fractions separately, and children do not recognize the deep mathematical connections. In consultation with mathematicians and mathematics educators, LMR is developing a 5th grade lesson sequence that coordinates lessons on integers and fractions using the number line as the principal representational context.

Research Foundation and Contribution
Curriculum materials are often developed without the necessary research base on mathematical learning to inform the design of the materials and instructional methods. LMR is conducting research on mathematical development and instructional practices to guide the design of our curriculum unit.

Supports for Lesson Implementation
Curriculum materials are frequently missing a clear model of the teaching practices that enable all students to learn, and therefore LMR is developing specific lesson structures along with a teacher’s guide containing print and video materials for each lesson.