Counting Groups Warm-Up

Objective: To activate prior knowledge about counting and grouping objects.

Instructions:

1. Teacher: "Good morning, super mathematicians! Let's get our brains ready for some awesome math. Today, we're going to start by counting some groups of things!"
2. Teacher: "Look at these pictures. How many groups do you see? And how many items are in each group? Let's count them together!"
   • (Display image of 2 groups of 3 apples)
     • Teacher: "How many groups of apples do you see?"
       
       
       
     • Teacher: "How many apples are in each group?"
       
       
       
     • Teacher: "How many apples are there altogether? Let's count!"
       
       
       
   • (Display image of 3 groups of 2 cookies)
     • Teacher: "How many groups of cookies do you see?"
       
       
       
     • Teacher: "How many cookies are in each group?"
       
       
       
     • Teacher: "How many cookies are there altogether? Let's count!"
       
       
       
3. Teacher: "Great job counting groups! You're already thinking like multiplication masters!"

Multiply & Conquer! Script

Introduction (Slide 1: What's Multiplication?)

"Good morning, future mathematicians! Today, we're going on an exciting adventure to learn a super cool math trick. It's called multiplication! Have you ever seen groups of things that are exactly the same? Like packs of crayons, or rows of cookies? How do we find out how many there are in ALL?

Sometimes, we have groups that are exactly the SAME! Multiplication helps us count these equal groups super fast! It's like magic for numbers."

Repeated Addition: Adding Groups! (Slide 2: Repeated Addition: Adding Groups!)

"Let's look at these yummy cookies. Can you see how many groups of cookies there are? Yes, there are two groups!

Now, how many cookies are in the first group? (Pause for response: 3) That's right! And how many are in the second group? (Pause for response: 3) Fantastic!

If we want to find out how many cookies there are altogether, we can add them up: 3 + 3 = 6! We added the number 3 two times. This is called repeated addition, because we are adding the same number again and again."

Meet the Multiplication Sign! (Slide 3: Meet the Multiplication Sign!)

"Now for the super speedy part! Instead of always saying '2 groups of 3,' mathematicians created a special symbol and a special word for it. This symbol looks like an 'x' (show on board) and we say 'times' or 'groups of'.

So, when we see 2 x 3, it means we have 2 groups, with 3 things in each group. And what did we find when we added 3 + 3? It was 6! So, 2 x 3 = 6! It's still 6! Multiplication is just a quicker way to say 'repeated addition'."

Let's Try Another! (Slide 4: Let's Try Another!)

"You're doing amazing! Let's try another one together. Look at these tricycles. Who knows what a tricycle is? (Pause for responses). It's a bike with three wheels!

How many groups of wheels do we see here? Think about how many tricycles there are. (Pause for response: 3 tricycles). Yes, three groups!

And how many wheels are in each group, on each tricycle? (Pause for response: 3 wheels). That's right!

So, if we use repeated addition, we would say: 3 + 3 + 3 = ? (Pause for response: 9) Excellent! Now, who can tell me how we would say that using our new multiplication trick? (Guide students: 3 x 3 = 9). Wow, you got it! Three groups of three wheels equals nine wheels in all."

Multiplication Magic! (Slide 5: Multiplication Magic!)

"Fantastic work everyone! Remember, multiplication is a speedy way to count equal groups! It helps us find the TOTAL when we have the same number of things in different groups. You're learning some real math magic!

Next, we're going to try making our own groups and practice this super skill! Get ready for some hands-on fun!"

Grouping Fun Activity!

Objective: Students will practice creating and counting equal groups using manipulatives to understand multiplication as repeated addition.

Materials: Counting manipulatives (e.g., blocks, bear counters, buttons)

Instructions:

1. Work with a Partner: You will work with a partner for this activity. Share your manipulatives!
2. Listen to the Teacher: Your teacher will give you different instructions for making groups.
3. Make the Groups: Use your manipulatives to create the groups your teacher describes.
   • Example Teacher Prompt: "Show me 2 groups of 4!"
   • Your Action: Place 4 manipulatives in one pile, and 4 manipulatives in another pile.
4. Count Together: Once you have made your groups, count how many items you have in total. You can use repeated addition to help you!
   • Example for 2 groups of 4: "4 + 4 = 8! We have 8 altogether!"
5. Be Ready to Share: Your teacher might ask you to show your groups and explain how you counted.

Teacher Prompts (Examples to use during activity):

• "Show me 3 groups of 2!" (2 + 2 + 2 = 6)
• "Make 4 groups with 1 item in each!" (1 + 1 + 1 + 1 = 4)
• "Can you make 2 groups of 5?" (5 + 5 = 10)
• "Try to make 3 groups of 3!" (3 + 3 + 3 = 9)
• "Show me 5 groups of 1!" (1 + 1 + 1 + 1 + 1 = 5)
• "Can you make 2 groups of 2?" (2 + 2 = 4)

Multiply & Conquer! Cool Down

Name: ________________________

Instructions: Look at the pictures below and answer the questions.

1. How many groups of stars do you see?

⭐ ⭐ ⭐
⭐ ⭐ ⭐

Number of groups:

How many stars are in each group?

How many stars are there altogether?

2. Draw 3 groups of 2 circles.

How many circles did you draw altogether?

Multiply & Conquer! Cool Down Answer Key

1. How many groups of stars do you see?

⭐ ⭐ ⭐
⭐ ⭐ ⭐

Number of groups: 2

How many stars are in each group? 3

How many stars are there altogether? 6 (3 + 3 = 6)

2. Draw 3 groups of 2 circles.

(Students should draw something like:


(Circle Circle) (Circle Circle) (Circle Circle)


or similar representations of 3 separate groups, each containing 2 circles.)

How many circles did you draw altogether? 6 (2 + 2 + 2 = 6)