Read, write, and represent numbers through 120

Learning goal: Count forward to 120 from any starting number below 120, read and write numerals in that range, and connect them to object collections. Use a 120 chart, counters grouped for easier tracking, and paper for numeral writing. Practice across many short sessions instead of relying on one recited sequence.

Read the chart from left to right, then continue on the next row. Each box represents a number in sequence; it does not stand for a counted object unless the task explicitly gives it that role. Begin with a familiar section, then practice crossing 99 to 100 and 109 to 110. Row breaks are a printing arrangement, not places where counting restarts.

Start from a number other than one. If asked to begin at 96, say 96, 97, 98, 99, 100, 101 and continue as requested. Point to the corresponding numerals, then repeat without the full chart when ready. Separately read a randomly selected numeral so memorized chart position does not replace numeral recognition.

Connect a numeral with an amount of objects. To represent 36, count out thirty-six counters and organize them into three groups of ten and six extras. The grouping helps verify the count. The number of groups is not the number of individual counters: three tens represent thirty objects before the six extras are included.

For a larger collection such as 112, use eleven full groups of ten and two extras, or an appropriate hundred-and-ten-and-two arrangement if already understood. This lesson’s essential requirement is to represent the number accurately; later place-value instruction can refine the grouping language. Keep track of what each bundled unit contains so the representation does not claim that thirteen physical bundles and singles are thirteen individual counters.

Write numerals to match collections and spoken numbers. Compare 102 and 120: both contain the digits one, two and zero, but their positions differ and they name different amounts. Point to actual quantities or a chart to verify instead of treating a numeral as an unordered list of digits. Record numeral formation needs separately from correct counting and quantity understanding.

Worked example 1: Cross one hundred. Start at 98 and count through 103: 98, 99, 100, 101, 102, 103. Identify the spoken and written number at each step. There is no restart at one after 99.

Worked example 2: Count a represented amount. Five full groups of ten counters and eight single counters represent fifty-eight. Count the groups as 10, 20, 30, 40, 50, then continue 51 through 58 for the singles. Write 58.

Worked example 3: Distinguish nearby-looking numerals. Read 112 and 121. The target range includes 112 but stops at 120, so 121 is outside this lesson’s assessed range. Within the range compare 102 and 120 carefully and show their different locations or quantities.

Guided practice: Alternate counting from varied starts below 120, read mixed numeral cards, and build matching collections. Give extra practice at decade and hundred transitions. Keep the next few chart boxes available as support, then reduce that support gradually.

Independent evidence across sessions: Count to 120 from several adult-chosen starts, read and write a varied sample of numerals including 100–120, and represent requested amounts using accurately counted or grouped objects. Ask the learner to explain the group unit in one large collection.

Feedback: If a child reads 102 as 120, compare the digit positions and quantities with clear models. If a bundle is counted as one individual object, unpack it and verify its ten contents. If the counting sequence is correct but writing is reversed, provide numeral formation practice without assuming the quantity concept failed. Extend by letting the child select a starting number and challenge a partner to continue accurately within the range.