Creating Price Tags

Overview

Students will practice simple addition and number writing by creating price tags for items in a classroom mini market. This lesson helps students connect number symbols to real-world objects and their values, reinforcing concepts of quantity and value as per Common Core standards.

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Standards Alignment

Common Core State Standards - Mathematics (Grade 1):

• CCSS.MATH.CONTENT.1.OA.A.1: Use addition and subtraction within 20 to solve word problems involving situations of adding to, taking from, putting together, taking apart, and comparing, with unknowns in all positions.
• CCSS.MATH.CONTENT.1.NBT.B.2: Understand that the two digits of a two-digit number represent amounts of tens and ones.
• CCSS.MATH.PRACTICE.MP1: Make sense of problems and persevere in solving them.
• CCSS.MATH.PRACTICE.MP4: Model with mathematics.

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Learning Objectives

By the end of this 30-minute lesson, students will be able to:

• Write numbers 0-20 correctly to represent prices.
• Add two numbers within 20 to determine the price of an item.
• Associate written numbers with physical quantities and objects in the mini market.
• Collaborate by discussing prices and sharing materials with peers.

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Materials

• Mini market items (toy fruits, vegetables, canned goods, etc.)
• Blank price tag cards (3"x5")
• Markers/crayons/pencils
• Number chart (0-20) displayed visibly in the classroom
• Mini whiteboards and dry erase markers (optional for addition practice)
• Addition problem cards with simple story problems relevant to the mini market items (e.g., "If the apple costs 3 and the banana costs 2, what is the total price?")

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Lesson Breakdown

1. Introduction & Objective (5 minutes)

• Gather students around the mini market setup.
• Briefly explain that today they will become "price tag creators" for the mini market.
• Review numbers 0-20 on the number chart. Have students count aloud together.
• Discuss that each item in the store has a number that tells how much it costs.

2. Guided Practice: Creating a Price Tag (8 minutes)

• Show a toy item, e.g., an apple. Ask students: "Let's decide how much the apple costs."
• Use simple addition: "If the apple costs 3 and the banana costs 2, how much is that together?" Write the number 5 on a price tag and show it.
• Ask students to write the number 5 on their own blank price tag cards.
• Repeat with different items and addition examples ensuring everyone participates.

3. Partner Activity: Price Tag Creations (10 minutes)

• Pair up students and assign each pair 2-3 mini market items.
• Each pair adds numbers within 20 to create prices for their assigned items (teacher circulates to assist).
• Students write numbers on tags and attach them to their items.
• Encourage students to say their addition sentence aloud ("3 plus 4 equals 7") while writing.
• If time allows, partners can swap items and solve a simple addition problem using the partner's price tags.

4. Group Sharing & Discussion (5 minutes)

• Invite a few pairs to share their items and explain how they decided the prices using addition.
• Reinforce the idea that numbers tell us how much something costs and that we can add numbers to find total prices.

5. Assessment & Closure (2 minutes)

• Quick formative check: Ask individual students to write a number for a given price or solve a simple addition problem on mini whiteboards or orally.
• Praise effort and creativity, reinforcing learning objectives.

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Differentiation

• For students needing extra support: Provide number lines or counters for concrete addition experience.
• For advanced students: Challenge them to create price tags using addition within 20 but include two addends that are equal, or encourage solving addition word problems orally independently.

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Teacher’s Reflection

After the lesson, reflect on:

• Student engagement and ability to write numbers clearly.
• Comfort level with simple addition in a real-world context.
• Group collaboration dynamics during partner activity.
• Next steps to reinforce concepts in following lessons (e.g., introducing subtraction through price changes).

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Extension Idea

Invite students to “shop” using their price tags in a future lesson. They can use play money to buy items, practicing addition and making change, deepening their number sense and money concepts.

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This lesson creatively integrates math with real-world context, using manipulatives and active learning strategies tailored for first graders — ensuring alignment with Common Core standards and developmentally appropriate practices.