What are all those snake games in Montessori !? Children are playing with SNAKES!?
Haha - well maybe they are! ;)
What follows is how AMI organizes the snake games - I would love to hear how other albums/trainings name them or organize them:
|when it says gray with red binding - don't use red ;)|
all the colors show up nicely on GRAY (even the gray!)
not so much on red - too distracting
Addition Snake Game
- first presented at the beginning of the addition memorization sequence, but then is to run concurrent with the addition strip board and memorization charts. The albums seem to make it look like it should be finished before starting those other works; nope - concurrent ;) Hm. Perhaps AMI albums could be more clear in stating this concurrency; that the snake game should be introduced but not completed. I'll go have a talk with myself on that one ;)
- Materials: 3 boxes - One red box of five colored bead stairs; one gold box of 25 ten-bars; one black and white box with the black and white bead stair (beads 1-5 on each bar are black, 6-9 white); tray for the three boxes; small notched card (bridge) with its own container; piece of gray felt with red binding (32x18 inches)
Subtraction Snake Game
- first presented at the beginning of the subtraction memorization sequence, then runs concurrent with the subtraction strip board and memorization charts. The addition snake game should be mostly mastered before starting subtraction, but this can vary on the child.
- Materials: 4 boxes - One green box of five colored bead stairs; one gold box of 25 ten-bars; one gray box with the gray bead stair (beads 1-5 on each bar are light gray, 6-9 dark gray); one black and white box with the black and white bead stair (beads 1-5 on each bar are black, 6-9 white); tray for the four boxes; small notched card (bridge) with its own container; piece of gray felt with green binding (32x18 inches)
Elementary Negative Snake Game
- typically an early upper elementary work, but with interest or gifted children can certainly be done in lower elementary. Pre-requisites listed are "Knowledge of addition and subtraction facts; preparatory work with the ideas of negative numbers; addition and subtraction snake games in the primary class." Later notes in the album pages say "usually age 8". Thus interest or local educational standards are the driving forces here.
- Materials: 6 boxes - colored bead bars, gray/white bead bars, golden ten bars, black/white bead stair, gray ten bars, red/white stair
Some albums seem to list a middle-ground negative snake game; it is even mentioned in the elementary AMI math album because some children will come in with experience with it; but it is not found in the AMI albums. From what I can tell (please provide information in the comments if you know about this one!) it seems to be the Subtraction Snake Game with Negative Snake Game terminology added in. ???
And some people just call the Subtraction Snake Game a Negative Snake Game. It does the same thing, just is visually different, and doesn't get into the terminology of negatives.