Grade 1 Math Adventure: Counting, Comparing, and Making 10

Materials Needed

• 10–20 small objects, such as buttons, blocks, coins, or cereal pieces
• Paper and pencil or crayons
• Number cards from 0–10, homemade or printed
• Two small bowls, cups, or paper plates
• Optional: dice, ten-frame, tablet, or whiteboard

Learning Objectives

By the end of the lesson, the learner will be able to:

• Count objects from 0 to 20, matching one number to each object.
• Identify and write numerals from 0 to 10.
• Compare two groups using the words more, fewer, and equal.
• Show at least two different ways to make 10.
• Explain how they know which group has more or fewer objects.

Success Criteria

I can:

• Touch and count each object only once.
• Match a written number to the correct number of objects.
• Use more, fewer, or equal when comparing groups.
• Build and explain at least two number pairs that equal 10.

Introduction: The Number Detective Challenge

Hook: Say, “A friendly number detective needs your help! Two treasure chests contain objects, but we need to find out which chest has more treasure. Can you investigate?”

1. Place 4 objects in one bowl and 7 objects in another.
2. Ask the learner to predict which bowl has more before counting.
3. Have the learner count each group carefully.
4. Ask:
   • “Which bowl has more?”
   • “Which bowl has fewer?”
   • “How could we prove it?”

Share the plan: “Today we will practice counting, comparing groups, and finding different ways to make 10. At the end, you will complete a number detective challenge.”

Body

I Do: Model Counting and Comparing

1. Place 6 objects in a row.
2. Touch each object as you count: “1, 2, 3, 4, 5, 6.” Explain that the last number tells how many objects are in the group.
3. Write the numeral 6 beside the objects.
4. Make a second group with 4 objects.
5. Place the groups side by side and match the objects in pairs.
6. Think aloud: “The group of 6 has two objects left over, so 6 is more than 4. The group of 4 has fewer objects.”

Quick Check: Show groups of 3 and 3. Ask, “Which group has more?” Guide the learner to answer, “Neither. They are equal because they have the same number.”

We Do: Number Detective Sort

Work together to solve each investigation.

1. Choose two number cards from 0 to 10.
2. Build each number using objects.
3. Place the two groups side by side.
4. Compare the groups using more, fewer, or equal.
5. Record a sentence, such as:
   • “8 is more than 5.”
   • “2 is fewer than 7.”
   • “6 is equal to 6.”

Think-Pair-Share Option: If another learner is available, each person draws a number card and builds that group. If working one-to-one, the adult or learner can take the second role. Both partners explain how they know which group is greater.

Formative Assessment: Listen for accurate counting and correct use of comparison words. Ask, “How do you know?” rather than accepting only a one-word answer.

We Do: Make 10

1. Place 10 objects in a row or on a ten-frame.
2. Separate the objects into two groups, such as 3 and 7.
3. Say together: “3 and 7 make 10.”
4. Record the equation: 3 + 7 = 10.
5. Try other combinations, such as:
   • 1 + 9 = 10
   • 2 + 8 = 10
   • 4 + 6 = 10
   • 5 + 5 = 10

Movement Variation: Have the learner take 10 steps, then pause at different points. For example, after 4 steps, ask, “How many more steps do we need to make 10?”

You Do: Treasure Chest Challenge

The learner works independently, with only as much help as needed.

1. Draw two treasure chests.
2. Choose two numbers from 0 to 10.
3. Draw or place the correct number of treasures in each chest.
4. Write the number for each chest.
5. Complete one sentence:
   • “The first chest has more than the second chest.”
   • “The first chest has fewer than the second chest.”
   • “The chests have an equal number of treasures.”
6. Create two different ways to make 10 and write the matching equations.

Choice Activity

Choose one:

• Number Hunt: Find numbers from 0 to 10 around the home and put them in order.
• Dice Comparison: Roll a die twice, build both numbers, and compare them.
• Snack Math: Use 10 snack pieces to show different ways to make 10, then eat the groups after recording the equations.
• Digital Practice: Use a counting or ten-frame activity if a tablet or computer is available.

Differentiation and Support

For Learners Who Need More Support

• Work with numbers from 0 to 5 before moving to 10 or 20.
• Use a ten-frame or objects that can be touched and moved.
• Provide sentence frames: “___ is more than ___” or “___ and ___ make 10.”
• Count together slowly and encourage the learner to point to each object.
• Use visual symbols, such as a larger group arrow pointing toward the group with more.

For Learners Ready for More Challenge

• Compare numbers from 0 to 20.
• Write comparison statements using >, <, and =.
• Find every pair of whole numbers that makes 10.
• Explain why switching the addends gives another way to make 10, such as 3 + 7 and 7 + 3.
• Create a number riddle: “I am greater than 4 and less than 8. What numbers could I be?”

Assessment

Formative Assessment

• Observe whether the learner counts each object once.
• Ask the learner to explain which group has more and how they know.
• Check whether the learner matches numerals to quantities.
• Listen for correct use of more, fewer, and equal.

Summative Assessment: Final Number Detective Ticket

Ask the learner to complete the following:

1. Draw 8 dots and write the numeral 8.
2. Draw a group that has fewer than 8 objects.
3. Draw a group that has more than 8 objects.
4. Show two ways to make 10.
5. Explain one answer aloud.

Performance Benchmark: The learner meets the objective by counting accurately, comparing at least two groups correctly, and showing at least two combinations that make 10.

Conclusion: Tell What You Learned

1. Ask the learner to complete these statements:
   • “Today I learned that counting means…”
   • “A group has more when…”
   • “Two ways to make 10 are…”
2. Review the key ideas:
   • The last number counted tells how many objects there are.
   • More means a larger quantity.
   • Fewer means a smaller quantity.
   • Equal means the groups have the same amount.
   • A number can be made in different ways.
3. Invite the learner to give the adult one final mystery comparison to solve.

Optional Extension

During the day, look for real-life examples of numbers: count spoons, socks, steps, toys, or books. Ask, “How many are there? Can you make a group with more? Can you make a group with fewer?”