Count and Match Sets

Overview

In this first lesson of the “Building Mathematical Thinking” unit, students connect one-to-one counting with written numerals. They will touch-count small groups of objects, match each set to a numeral, and explain how they know. Activities are designed for a kindergarten-level focus while allowing individualized support for students working at different levels.

Learning intentions

Students will be able to:

• Count objects by touching or moving one object at a time.
• Count forward by ones and begin from a given number.
• Match a set of 0–10 objects to the correct written numeral.
• Represent a number with objects and a written numeral.

Success criteria

• I can touch each object once as I count.
• I can say the number of objects in a set.
• I can match a numeral to a set with the same number of objects.
• I can show 0 when there are no objects.

Curriculum links

• Counting and Cardinality — count to 100 by ones and by tens.
• Counting and Cardinality — count forward from a given number.
• Counting and Cardinality — write numbers from 0 to 20 and represent objects with numerals.
• Operations and Algebraic Thinking — represent addition and subtraction with objects, drawings, or verbal explanations.

Lesson structure (30 minutes)

1. 0–4 min · Hook and connect. Teacher opens the counting hook slides and shows two small groups of counters, asking, “How can we find out how many?” Students make a quick estimate, then watch the teacher touch and move each object while counting aloud. Emphasize that each object gets one number word.

2. 4–9 min · Model one-to-one counting. Teacher uses large counters and the modeling slides to demonstrate starting at 1, touching each counter once, saying the number clearly, and stating the total: “There are 5 counters.” Students echo-count, then practice the motion with their fingers in the air or on the table. Model a set of 0 objects and explain that zero means none.

3. 9–16 min · Guided matching practice. Teacher gives each student a small collection of counters and a set of large numeral cards from 0–10, then displays the directions on the guided practice slides. Teacher builds sets of 3, 6, and 10, prompting, “Touch, count, and find the numeral.” Students count their own sets, select the matching numeral, and explain or point to how they know. Check each student individually at least once.

4. 16–24 min · Independent or partner task. Teacher distributes the count-and-match worksheet and provides counters beside each student. Students count pictured or concrete sets, draw a line to the matching numeral, and complete a few numeral-to-set tasks. The teacher circulates, asking students to touch-count aloud and recording whether they count accurately, skip objects, or double-count. Students who finish early create a set for a partner to count.

5. 24–28 min · Start-from-a-number challenge. Teacher returns to the counting-on slides and displays a numeral such as 4, asking students to continue counting: “4, 5, 6…” Students count forward from given numbers within 10, using a visual number line or counters as needed. Invite students to explain that they do not need to start at 1 when a number is already given.

6. 28–30 min · Review and exit check. Teacher displays the review and exit slides and privately shows each student a set of up to 10 counters plus two numeral choices. Students touch-count, choose the matching numeral, and complete the sentence, “I counted ___.” End by revisiting the success criteria with a thumbs-up, sideways thumb, or pointing response.

Resources

• the counting and matching slide deck
• the count-and-match worksheet
• Large, high-contrast numeral cards 0–10
• Tactile counters or linking cubes
• Small trays or work mats
• Individual visual number lines 0–20
• Pencils, crayons, or adapted writing tools
• Teacher observation checklist
• Optional communication boards or number-choice cards

Assessment

• During modeling and guided practice, check whether each student touches each object once, uses stable one-to-one counting, and states the final number as the total.
• Review worksheet responses and observe whether students match numerals to sets independently, with a prompt, or with physical support.
• Use the final set-and-two-numerals check as an exit assessment. Record the highest set size counted accurately and whether the student recognizes 0.

Differentiation

• For students needing support, use five-object sets, larger counters, a defined work mat, and a visual number line. Reduce choices to two numerals and provide the prompt, “Touch, move, say.”
• Model slowly and repeat oral directions one step at a time. Offer hand-over-hand support only as needed, then fade to a light touch or gesture so students can take ownership of counting.
• Provide dyslexia-friendly materials: large uncluttered numerals, high-contrast cards, generous spacing, oral directions, tactile counters, and minimal text. Allow students to answer by pointing, speaking, signing, or selecting a numeral.
• For multilingual learners and students with communication needs, pair gestures with language and use the sentence frame, “There are ___.” Accept home-language counting when appropriate, then connect it to the English numeral.
• For students working above the target, provide sets to 20 and ask, “How many more are needed to make 10?” or “How many more are needed to make 20?” Students explain using counters, drawings, or spoken reasoning.

Extension

• Students count a set to 20, match it to a numeral, and check the count with a partner.
• Give a set such as 6 and ask students to add counters until there are 10, then explain how many more were needed.
• Invite advanced learners to begin counting from a given number such as 7 and continue forward to 20.