Teddy Bear Shop: Adding Two-Digit Numbers with Regrouping

Math Grades 1st Grade 4:58 Video
Print Lesson Plan Watch Video

Lesson Description

Learn how to add two-digit numbers with regrouping using Canadian money (dimes and pennies) in a fun shopping scenario!

Video Resource

Grade 1: Math Lesson #86 Adding Two-Digit Numbers With Regrouping (CANADIAN Money)

The Eagle's Nest - Our Online Classroom

Duration: 4:58
Watch on YouTube

Key Concepts

  • Place Value (Tens and Ones)
  • Regrouping (Trading 10 ones for 1 ten)
  • Adding Two-Digit Numbers

Learning Objectives

  • Students will be able to identify the tens and ones place in a two-digit number.
  • Students will be able to add two-digit numbers with regrouping using dimes and pennies.
  • Students will be able to understand and apply the concept of trading 10 pennies for 1 dime.

Educator Instructions

  • Introduction (5 mins)
    Begin by reviewing the concepts of dimes (10 cents) and pennies (1 cent). Remind students that a two-digit number has a tens place and a ones place. Ask them simple questions like: "How many pennies are in a dime?"
  • Shopping at the Teddy Bear Shop (10 mins)
    Introduce the scenario of shopping at the Teddy Bear Shop. Explain that each toy has a price. Work through the first example from the video: adding 26 cents (teddy bear with checked bow) and 24 cents (teddy bear with heart). Emphasize counting out the money (dimes and pennies) for each toy. Model the addition process, highlighting the regrouping step (trading 10 pennies for 1 dime).
  • Practice Problem (10 mins)
    Work through the second example from the video: adding 17 cents (dog) and 16 cents (cat). Again, emphasize counting out the money. Guide students through the addition, step-by-step, ensuring they understand the regrouping process. Ask guiding questions: 'How many ones do we have?', 'Can we make a ten?'
  • Independent Practice (10 mins)
    Provide students with additional addition problems involving two-digit numbers and Canadian money. Have them work independently or in pairs to solve the problems. Encourage them to use dimes and pennies (real or drawn) to help them visualize the regrouping process.
  • Wrap Up (5 mins)
    Review the key concepts of the lesson. Ask students to explain in their own words what regrouping means. Remind them that when the ones place has 10 or more, we need to make a ten and move it to the tens place. Congratulate them on their shopping and math skills!

Interactive Exercises

  • Money Matching Game
    Create cards with different amounts of money (e.g., 32 cents, 45 cents). Have students match the cards with the correct number of dimes and pennies.
  • Shopping Role Play
    Set up a mini "Teddy Bear Shop" with price tags on various items. Have students take turns being the shopper and the cashier, practicing adding the prices of the items and giving the correct amount of money.

Discussion Questions

  • What happens when we have more than 9 pennies?
  • Why is it important to line up the numbers in the ones and tens places?
  • Can you think of other times when we might need to regroup when adding?

Skills Developed

  • Addition with Regrouping
  • Place Value Understanding
  • Problem Solving

Multiple Choice Questions

Question 1:

What is another name for 10 pennies?

Correct Answer: A dime

Question 2:

What place is the number on the right?

Correct Answer: Ones Place

Question 3:

What is 13 + 21?

Correct Answer: 34

Question 4:

If you have 12 pennies, how many dimes and pennies can you make?

Correct Answer: 1 dime and 2 pennies

Question 5:

What does 'regrouping' mean in addition?

Correct Answer: Trading ten ones for a ten

Question 6:

What is the total of 25 cents + 15 cents?

Correct Answer: 40 cents

Question 7:

What is the value of one dime?

Correct Answer: 10 cents

Question 8:

Which place do we add FIRST when we add big numbers?

Correct Answer: Ones place

Question 9:

If you have 3 dimes and 5 pennies, how much money do you have?

Correct Answer: 35 cents

Question 10:

What does the plus (+) sign mean?

Correct Answer: Add

Fill in the Blank Questions

Question 1:

We can use ________ and ________ to help us add money.

Correct Answer: dimes, pennies

Question 2:

When we add, we start with the ________ place.

Correct Answer: ones

Question 3:

10 pennies is the same as 1 ________.

Correct Answer: dime

Question 4:

When adding 26 + 14, 6 + 4 = ________.

Correct Answer: 10

Question 5:

Adding ten to a number is adding to the ________ place.

Correct Answer: tens

Question 6:

2 dimes are worth ________ cents.

Correct Answer: 20

Question 7:

If you have 1 dime and 3 pennies, you have ________ cents.

Correct Answer: 13

Question 8:

In the number 32, the 3 is in the ________ place.

Correct Answer: tens

Question 9:

When we regroup, we make a new ________.

Correct Answer: ten

Question 10:

The Teddy Bear Shop sells Teddy Bears and other ________.

Correct Answer: toys

Educational Standards

1.NBT.C.4:Add within 100, including adding a two-digit number and a one-digit number, and adding a two-digit number and a multiple of 10, using concrete models or drawings and strategies based on place value, properties of operations, and/or the relationship between addition and subtraction; relate the strategy to a written method and explain the reasoning used. Understand that in adding two-digit numbers, one adds tens and tens, ones and ones; and sometimes it is necessary to compose a ten. 1.NBT.B.2:Understand that the two digits of a two-digit number represent amounts of tens and ones. Understand the following as special cases: 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, e.g., by using objects, drawings, and equations with a symbol for the unknown number to represent the problem.

Teaching Materials

Download ready-to-use materials for this lesson:

Student Worksheet Classroom Slides Assessment Quiz Export to Google Docs
Add to Google Classroom

User Actions

Sign in to save this lesson plan to your favorites.

Sign In

Share This Lesson

Related Lesson Plans