Teachley Math Practice Kits: Transmedia resources to support students' metacognitive math reasoning

In Phase II, the team will develop transmedia kits for additional elementary school grades, create bilingual versions for Spanish-speaking students, a digital story creator tool for students to add backgrounds, speech bubbles, and audio to create mini-stories to share with the teacher and classmates, and fully develop the educator training and a home-school connections website with family-friendly resources. After development is complete, the research team will conduct a pilot study to assess the feasibility and usability, fidelity of implementation, and promise of the intervention to support student math learning.  The study will include 20 grade 2 and 3 classrooms with approximately 25 students per class and 500 students total. Classrooms will be randomly assigned to use the intervention or continue with business-as-usual procedures. Researchers will compare pre-and-post scores of student math learning, using the Mathematics Knowledge for Teaching Assessment to assess student knowledge of practice standards and misconceptions. The team will gather cost information using the "ingredients method" and will include all expenditures on things such as personnel, facilities, equipment, materials, and training.