Study guide: Connect Numerals, Zero, and Equal Counts
Read and write numerals and distinguish equal counts from appearance.
Ideas to explain in your own words
- Zero is a number for a group with no objects.
- A written numeral stores a count so another person can read it later.
- A large-looking printed digit does not necessarily mean a larger number.
- Moving objects can make a group look longer or more crowded.
Useful vocabulary
- zero
- No objects in the group.
- equal
- The same amount, even when arranged differently.
Watch your reasoning
- An empty container is not one item of its missing contents.
- The card records the whole count, not the last object’s shape.
- Printed size is not numerical value.
- Longer spacing does not mean more objects.
A worked review example
Box A contains no beads and Box B contains one bead. The counts are A: 0 and B: 1. The box outlines are not beads. Zero describes the empty bead group, while one describes the group with a bead. Name what is being counted before counting. An empty container is not one item of its missing contents. Draw an empty group and a group with one object beside it.
Make a practice plan
- Use Zero for an Empty Group: Draw a box with zero stars and another with three stars. Expected labels: 0 and 3.
- Write a Numeral to Record a Count: Write cards for 17, 19, and 20 and make matching drawings. Expected: each written numeral matches its count.
- Order Written Numbers Without Guessing by Size: Write 2 very large and 7 very small. Expected: 7 still represents more.
- Keep a Count When Objects Move: Draw two arrangements of ten dots. Expected: both totals are 10.