Early algebra ideas involving two variables, Clip 10 of 18: Mike's solution to problem 2 [article]

Davis, Robert B. (Robert Benjamin), Carolyn Alexander Maher, Alice S. Alston, Amy Marie Martino
In the tenth of 18 clips from Early Algebra Ideas Involving Two Variables on the second of two consecutive classroom sessions with the class of 6th grade students, the researcher Robert B. Davis asks Michael to share his solution to his choice of one of the first problems with the class. Michael copies Table 2, as printed below, onto the white board. He then explains the pattern of the differences in the "triangle" column and then writes the first term of the equation. After he describes other
more » ... he describes other relationships between the pairs of values, Matt provides the constant term, 5, which Michael then adds and completes the equation. Researchers Carolyn Maher, Alice Alston and Amy Martino are observing. Table for Problem 2: □ ∆0 51 72 93 114 13
doi:10.7282/t3j38rf2 fatcat:filmswcr7jaxpbzd5rl22xyiiu