Looking at the bottom row of shapes:
1. The rock: This has an irregular shape with many sides, but not exactly 8 sides, so it's not an octagon.
2. The birdhouse: This appears to be a pentagon (5 sides - square base with triangular roof), not an octagon.
3. The STOP sign: This is clearly an octagon with 8 sides.
Based on my analysis of all the shapes in the image, I've identified three octagons:
- The medal in the top right
- The nut/bolt in the middle
- The STOP sign in the bottom right
These are the only shapes that have exactly 8 sides, which is the definition of an octagon.
Parent Tip: Review the logic above to help your child master the concept of octagon worksheet for preschoolers.