Скачать или смотреть Quick Image Math - Building Addition Fluency

Inspired by the Sept 2011 Teaching Children Mathematics article, "Fluency With Basic Addition," we did a little math with quick images. The author, Gina Kling, writes, "The idea of a quick image is to quickly show a representation to students with the expectation that they will retain a mental picture of what they saw and then use that image in some way." She goes on to specify, "The key [is] to flash the image quickly enough so that students could not rely on counting to determine their answer."

I put pegs into a mat, gave a 5yo a quick image, and asked him to then replicate the number of pegs in his own mat. The mathematical thinking is apparent as he decomposes the number four, seeing it as "these two and these two make four." We've done no formal work with addition; I've never heard him say,"two plus two makes four." It's quite exciting to see his mathematical reasoning.

We're on our way to learning basic facts.