Here is an activity I created to introduce geometric sequences.
1) Watch the movie below:
2) Determine the dimensions of the last image if the original image was 210 × 297 mm.
**I had a copy of the original and final image and had students measure the original on their own, and then check their answer by measuring the final image.**
3) Extenstions: If we combined all the images, determine the total area.
If I extended this sequence to infinite, what would be the limit of the sum of the sequence?