Crayon box clip art . Pinterest. (2021). https://www.pinterest.com/pin/484207397447263096/ 

Morrissette, S. (2024). What is repeated addition? definition, examples & formulas. DreamBox by Discovery Education. https://www.dreambox.com/math/skills/addition/repeated-addition 

Multiplication strategies progression. Multiplication Strategies Progression. Department of Education. (n.d.). https://www.maine.gov/doe/pl/math/multiplication#:~:text=One%20of%20the%20early%20strategies,5%20%2B%205%20%3D%2035%20pencils. 

Smartick. (n.d). Properties of Multiplication. Smartick. https://www.smartick.com/blog/mathematics/multiplication-and-division/properties-of-multiplication/

Math Songs by NUMBEROCK. (2021, March 30). The Properties of Multiplication Song | 3rd Grade – 4th Grade [Video]. Youtube. https://youtu.be/oq3OUYyPaCQ

Van de Walle, J. A., Karp, K. S., & Bay-Williams, J. M. (2013). Elementary and middle school mathematics: Teaching developmentally. Pearson.

Education.com. (n.d.). Multiplication worksheets and games. https://www.education.com