The Sticky Math Triad below asks for students to make connections between representations while beginning to explore the Commutative Property. By asking students to create additional equivalent representations, students may choose to find the sum by counting on, creating a ten, or creating a known equivalent (e.g., 5+5=10) pictorially or symbolically.
By simply changing the direction of the arrow, you can change the visuals in this Sticky Math Triad from addition to subtraction:
If using this as a warmup, then you could do addition on day one, subtraction on day two, and compare them on day three to explore the relationship between addition and subtraction. The Sticky Math Comparison Template would be a good place to record the relationships on all three days (e.g., knowing that 7 + 3 = 10, one knows 10 – 7 = 3 or knowing that 3 + 7 = 10, one knows 10 – 3 = 7 ).
By modifying the numbers to something similar to 8 + 6, you could continue to explore making a ten (e.g., 8 + 6 = 8 + 2 + 4 = 10 + 4 = 14). Something like 13 – 4 could facilitate decomposing a number leading to a ten (e.g., 13 – 4 = 13 – 3 – 1 =10 – 1 = 9 )
What connections are your students making? What modifications are you making to use this with students? We would love to hear your feedback; please submit a comment below or consider submitting your own Sticky Math activity here.