Natural Number Stacker
ECERS-3: Math materials and activities 3.1 - At least 2 different, appropriate math materials from each of the 3 categories (counting/comparing quantities; measuring/comparing sizes/fractions; familiarity with shapes) are accessible for at least 25 minutes during the observation.
ECERS-3: Math materials and activities 5.1 - At least 10 different appropriate math materials, with at least 3 from each of the 3 categories listed, are accessible for at least 1 hour during the observation.
- Ages 2+
- Includes ten number posts and 55 rings
- Number posts 2½"-7"