lenny

Tens & Ones: Grouping Fun!

user image

Lesson Plan

Tens & Ones: Grouping Fun!

Students will be able to group objects into tens and ones and represent two-digit numbers using place value understanding.

Understanding tens and ones is like having a superpower for numbers! It helps you count big groups quickly, solve trickier math problems, and makes numbers make more sense in your everyday life.

Audience

1st Grade

Time

30 minutes

Approach

Hands-on grouping and interactive slides.

Materials

Small objects for counting (e.g., popsicle sticks, beads, unifix cubes) - approximately 30 per student, Rubber bands or small containers for grouping, Tens & Ones Slide Deck, Warm-Up: How Many?, Tens & Ones Practice Worksheet, and Cool-Down: Show What You Know

Prep

Gather Materials & Review

15 minutes

  • Gather small objects for each student (about 30 per student). Examples: popsicle sticks, unifix cubes, counters, beans.
    - Prepare rubber bands or small cups for students to group their tens.
    - Review the Tens & Ones Slide Deck to familiarize yourself with the content.
    - Print copies of the Tens & Ones Practice Worksheet for each student.
    - Print copies of the Warm-Up: How Many? and Cool-Down: Show What You Know for each student.
    - Ensure all technology (projector, computer) is working for the slide deck presentation.
    - (Optional) Prepare a few pre-grouped sets of tens and some loose ones to model the activity clearly.

Step 1

Warm-Up: Count & Share

5 minutes

  • Distribute the Warm-Up: How Many? to each student.
    - Instruct students to quickly count the objects on their warm-up sheet and write the total.
    - Ask a few students to share their answers and how they counted. This activates prior knowledge of counting single items.

Step 2

Introduction: What are Tens and Ones?

5 minutes

  • Begin with the Tens & Ones Slide Deck - Slide 1.
    - Engage students by asking what they know about big numbers.
    - Introduce the concept of grouping by ten to make counting easier (Slide 2).
    - Explain that 'tens' are groups of ten, and 'ones' are the leftover single items (Slide 3).

Step 3

Hands-On Grouping Activity

10 minutes

  • Distribute the small objects (approx. 30) and rubber bands/cups to each student.
    - Guide students through grouping their objects into bundles of ten (Slide 4). Model this clearly.
    - Have them make as many groups of ten as possible, leaving any remaining objects as 'ones.'
    - Circulate and assist students, asking questions like, 'How many groups of ten do you have?' and 'How many ones are left over?'
    - Discuss as a class how many tens and ones different students have, reinforcing the terms. (Slide 5)

Step 4

Practice Worksheet

5 minutes

  • Distribute the Tens & Ones Practice Worksheet.
    - Explain that students will draw groups of tens and ones to represent numbers.
    - Work through the first example together on the slide deck (Slide 6).
    - Allow students to work independently on the worksheet, providing support as needed.

Step 5

Cool-Down: Show What You Know

5 minutes

  • Distribute the Cool-Down: Show What You Know.
    - Students will complete a short activity to demonstrate their understanding of tens and ones.
    - Collect the cool-downs to assess comprehension and plan for future instruction. (Slide 7)
lenny
0 educators
use Lenny to create lessons.

No credit card needed

Slide Deck

Math Time: Grouping Fun!

How do we count big numbers quickly and easily?

Welcome students and get them ready for math. Ask them to think about how they count things. Engage them by asking about big numbers.

Counting Made Easy!

What if we have a lot of things to count?

It's easier to count when we put things into groups!

Introduce the idea that grouping makes counting easier. Use a simple analogy if possible, like organizing toys.

Tens and Ones

• Tens are groups of 10 things.
• Ones are the extra things left over.

Introduce the terms 'tens' and 'ones'. Emphasize that 'tens' are always groups of 10, and 'ones' are single items.

Let's Group!

  1. Take your objects.
  2. Count out 10 objects and put a rubber band around them or put them in a small cup. This is one TEN!
  3. Keep making groups of 10.
  4. Any objects left over are ONES.

Explain the hands-on activity. Model how to make groups of ten with the provided objects and how to count the ones. Circulate and assist.

What Did You Find?

• How many groups of tens did you make?
• How many ones do you have left?

Let's share our numbers!

Review the activity. Ask students to share how many tens and ones they made. Use this to reinforce place value language.

Show What You Know!

Now, let's practice drawing tens and ones!

Example: How would you show the number 23?

Draw 2 groups of ten.
Draw 3 ones.

Introduce the worksheet. Explain that they will draw groups of tens and ones. Do the first example together, clearly drawing a group of ten (e.g., a stick) and individual ones (e.g., dots).

Cool-Down Challenge

Complete your Cool-Down sheet.

This helps me see what you learned today!

Explain the cool-down as a quick check for understanding. Collect these to see who grasped the concept.

lenny

Warm Up

Warm-Up: How Many?

Count the objects in each box. Write the total number.

## Box 1
🍎🍎🍎🍎🍎🍎
🍎🍎🍎

Total:



## Box 2
⭐ ⭐ ⭐ ⭐ ⭐ ⭐ ⭐ ⭐ ⭐ ⭐
⭐ ⭐ ⭐ ⭐ ⭐

Total:



## Box 3
⚽ ⚽ ⚽ ⚽ ⚽ ⚽ ⚽
⚽ ⚽ ⚽ ⚽ ⚽ ⚽

Total:



lenny
lenny

Worksheet

Tens & Ones Practice Worksheet

Instructions: Look at each number. Draw groups of tens and individual ones to show the number.

Example: 23

Draw: 2 tens and 3 ones

|| || .

(Imagine each '||' is a bundle of 10 and '.' is a single one)

1. 14

Draw:





2. 31

Draw:





3. 27

Draw:





4. 19

Draw:





5. 30

Draw:





lenny
lenny

Cool Down

Cool-Down: Show What You Know

Instructions: Draw tens and ones to show the number.

1. Show the number 16.

Draw:





2. Show the number 25.

Draw:





3. I have 3 groups of ten and 2 ones.

What number do I have?


Draw this number:





lenny
lenny