Use number names, counting sequences, and how to count to answer "how many?"

• Count forward and backward by 1s, 2s, or 10s between any two numbers from 0–100 and fix errors in a sequence.
• Count objects arranged in lines, grids, or circles (up to 100) and explain why the final count stays the same regardless of order.
• Estimate up to 100 objects, describe the estimation strategy, and justify a reasonable choice among peer estimates.
• Represent counted objects with numerals 0–100 and apply ordinal numbers up to 10th position.

Identify numbers in different positions around a given number (0–100).

• Use number charts (e.g., multiples of 4) to spot numbers before, after, above, or below any highlighted value.
• Collaborate in groups with number grids to describe positional relationships around chosen numbers.

Use number names and non-standard units to count "how long?" or "how much?" up to 100.

• Measure classroom objects by counting foot lengths, hand-spans, or reference strips and report totals.
• Compare container capacities by counting how many smaller bottles or cups fill a larger container.

Describe relationships between quantities/numbers up to 100 using place value and number lines.

• Apply one-to-one correspondence to identify which of two sets (up to 100 objects) is greater, lesser, or equal.
• Use "more than," "less than," and "same as" while comparing collections of 1–100 items.
• Arrange sets of up to 50 objects in ascending or descending order and justify the reasoning.
• Identify numbers or sets that are exactly one more or one less than a stated number (1–100).
• Place and compare 0–100 on a number line to discuss relative size.

Represent comparisons of two numbers up to 100 using ">", "<", or "=".

• Use comparative language to explain why one number (1–50) is greater or less than another.
• Translate comparisons into symbolic form with >, <, or = for pairs up to 50 and extend toward 100.

Describe relationships between quantities/numbers up to 100.

• Use matching or counting to decide if a set (up to 20 objects) is greater, less, or equal to another and communicate the comparison.
• Build new sets that are more, less, or equal compared with a given group to show relational thinking.
• Order groups of objects and numerals up to 20, describe how much larger or smaller numbers up to 100 are, place numerals on a 0–50 number line with benchmark numbers, and role-play comparison stories such as "Johnson has 3 mangoes, Adwoa has 7."