Sixteen Discovery Slides Teen Expedition • Day 1
Lesson 1
Number of the Day
Sweet 16!
Ten and Six More!
Our Teen Expedition begins! Say: “Sixteen!”
Building 16 with Ten-Frames
1 Full Ten + 6 Extra Ones
1
2
3
4
5
6
7
8
9
10
10 (Full Ten)
11
12
13
14
15
16
6 Ones
10 + 6 = 16
How to Write 16
16
Step 1: The One
“Straight line down, and then you are done!”
Step 2: The Six
“Down we go and make a loop, number six rolls in the hoop!”
Trace a big 16 in the air!
Counting Moves: Reach 16
Kinesthetic Action
10
Ten Arm Circles
Roll your arms 10 times to build the ten!
+6
Six Toe Touches
Bend and touch toes 6 times: 11 to 16!
Ready for your Day 1 Practice Sheet!
Number Sixteen Practice Sheet 16
Number Sixteen Launch
Day 1 Focus • Ten and Six More
Name:
Date:
1
Trace & Write 16
Down for 1, loop around the bottom for 6
16
16
16
2
Color Exactly 16 Circles
Color all 10 in the first frame, then 6 more
3
Count the Trail Mushrooms
Count them carefully
🍄🍄🍄🍄🍄 🍄🍄🍄🍄🍄 🍄🍄🍄🍄🍄 🍄
How many?
4
Number Bond Sentence
Ten ones plus six ones equals...
10 + 6 =
★ Wonderful job launching with number 16 today! Teen Expedition • Lesson 1
Seventeen Discovery Slides Teen Expedition • Day 1
Lesson 1
Number of the Day
Super 17
Ten and Seven More!
Get your counting fingers ready! Say: “Seventeen!”
Building 17 with Ten-Frames
1 Full Ten + 7 Extra Ones
1
2
3
4
5
6
7
8
9
10
10 (Full Ten)
11
12
13
14
15
16
17
7 Ones
10 + 7 = 17
How to Write 17
17
Step 1: The One
“Come right down and in fun, that makes the number one!”
Step 2: The Seven
“Across the sky and down from heaven, that makes the number seven!”
Trace it in the air with your magic finger right now!
Clap & Count to 17
Whole Class Challenge
Stomp
Stomp your feet 10 times to build the ten!
Clap
Clap your hands 7 times for the ones!
Shout
Say together: “We reached 17!”
Ready to start your Day 1 Practice Sheet!
Number Seventeen Practice Sheet 17
Number Seventeen Expedition
Day 1 Focus • Ten and Seven More
Name:
Date:
1
Trace & Write 17
Down for 1, across and slant for 7
17
17
17
2
Color Exactly 17 Circles
Color all 10 in the first frame, then 7 more
3
Count the Forest Treasures
Count them one by one
🍃🍃🍃🍃🍃 🍃🍃🍃🍃🍃 🍃🍃🍃🍃🍃 🍃🍃
How many?
4
Number Bond Sentence
Ten ones plus seven ones equals...
10 + 7 =
★ Great work learning number 17 today! Teen Expedition • Lesson 1
Eighteen Expedition Slides Teen Expedition • Day 2
Lesson 2
Number of the Day
Awesome 18
Ten and Eight More!
Look at all those counters! Say: “Eighteen!”
Building 18 with Ten-Frames
1 Full Ten + 8 Extra Ones
1
2
3
4
5
6
7
8
9
10
10 (Full Ten)
11
12
13
14
15
16
17
18
8 Ones
10 + 8 = 18
How to Write 18
18
Step 1: The One
“Straight line down, and then we are done!”
Step 2: The Eight
“Make an S and do not wait, race back up to make an eight!”
Draw an 18 in the air with both hands!
Movement Station: 18 Jumps
Kinesthetic Counting
10
Ten Big March Steps
March loudly in place counting 1 to 10!
+8
Eight Bunny Hops
Hop lightly in place counting 11 to 18!
Ready for your Day 2 Practice Sheet!
Number Eighteen Practice Sheet 18
Number Eighteen Expedition
Day 2 Focus • Ten and Eight More
Name:
Date:
1
Trace & Write 18
Make an S and close the gate for 8
18
18
18
2
Color Exactly 18 Circles
Notice: only 2 empty spaces are left!
3
Count the Acorns in the Grove
Count in 5s or count one by one
🌰🌰🌰🌰🌰 🌰🌰🌰🌰🌰 🌰🌰🌰🌰🌰 🌰🌰🌰
How many?
4
Number Bond Sentence
Ten ones plus eight ones equals...
10 + 8 =
★ Great work mastering number 18 today! Teen Expedition • Lesson 2
Nineteen Quest Slides Teen Expedition • Day 3
Lesson 3
Number of the Day
Terrific 19
Ten and Nine More • Almost Twenty!
Look how close we are to a full frame! Say: “Nineteen!”
Building 19 with Ten-Frames
Just 1 away from 20!
1
2
3
4
5
6
7
8
9
10
10 (Full Ten)
11
12
13
14
15
16
17
18
19
9 Ones
10 + 9 = 19
How to Write 19
19
Step 1: The One
“Start at the top and down we run!”
Step 2: The Nine
“A loop and a line, that makes a nine!”
Trace 19 on your desk with your index finger!
Tap Your Knees to 19
Rhythm Counting
🖐️
Left Knee
Tap 10 times for the ten group!
✋
Right Knee
Tap 9 times for the nine ones!
Ready for your Day 3 Practice Sheet!
Number Nineteen Practice Sheet 19
Number Nineteen Quest
Day 3 Focus • Ten and Nine More
Name:
Date:
1
Trace & Write 19
Make a loop and a straight line down for 9
19
19
19
2
Color Exactly 19 Circles
Look: only 1 circle stays blank!
3
Count the Orchard Apples
Count carefully up to 19
🍎🍎🍎🍎🍎 🍎🍎🍎🍎🍎 🍎🍎🍎🍎🍎 🍎🍎🍎🍎
How many?
4
Number Bond Sentence
Ten ones plus nine ones equals...
10 + 9 =
★ Incredible! You conquered number 19! Teen Expedition • Lesson 3
Twenty Summit Slides Teen Expedition • Day 4
Lesson 4
Number of the Day
Grand 20!
Two Complete Tens • Zero Leftover Ones!
We reached the top of the mountain! Say: “Twenty!”
Building 20 with Ten-Frames
Two Full Frames!
1
2
3
4
5
6
7
8
9
10
1st Ten (10)
11
12
13
14
15
16
17
18
19
20
2nd Ten (10)
10 + 10 = 20 • 2 Full Tens!
How to Write 20
20
Step 1: The Two
“Around and back on the railroad track: two, two, two!”
Step 2: The Zero
“Around and around and around you go, that is how you make a zero!”
Draw a giant 20 in the sky!
The 20 Digits Challenge
Body Math Celebration
👐
10 Fingers High
Hold up both hands and wiggle all 10 fingers!
👟
10 Toes Tapping
Tap your shoes with all 10 toes! 10 + 10 = 20!
Ready for your Day 4 Practice Sheet!
Number Twenty Practice Sheet 20
Number Twenty Summit
Day 4 Focus • Two Complete Tens
Name:
Date:
1
Trace & Write 20
Curve and track for 2, round and round for 0
20
20
20
2
Color Exactly 20 Circles
Both ten-frames will be completely full!
3
Count the Glowing Stars
Count by 5s or count one by one
⭐⭐⭐⭐⭐ ⭐⭐⭐⭐⭐ ⭐⭐⭐⭐⭐ ⭐⭐⭐⭐⭐
How many?
4
Number Bond Sentence
Ten plus ten equals...
10 + 10 =
★ Wow! You reached the 20 summit today! Teen Expedition • Lesson 4
Teen Explorers Worksheet Teen Explorers
Number Journey • Numbers 16, 17, 18, 19, 20
Name:
Date:
1
Trace and Write the Numbers
Follow dotted guidelines
16 sixteen
16
16
17 seventeen
17
17
18 eighteen
18
18
19 nineteen
19
19
20 twenty
20
20
2
Count the Ten-Frames • Write the Total
Count 10 plus extra ones
Set A
Write
Set B
Write
Set C
Write
Set D
Write
10 + 6 = 16 • 10 + 7 = 17 • 10 + 8 = 18 • 10 + 9 = 19 • 10 + 10 = 20! Page 1 of 2
Teen Explorers • Review & Challenge
Connecting objects, hunting numerals, and completing trails
Name:
3
Count the Objects • Draw a Line to Match
Count each group!
Mushrooms
🍄🍄🍄🍄🍄
Leaves
🍃🍃🍃🍃🍃
Acorns
🌰🌰🌰🌰🌰
Apples
🍎🍎🍎🍎🍎
Stars
⭐⭐⭐⭐⭐
18
16
20
17
19
4
Number Detective • Color the Bubbles
Color according to the code
16 = Teal
17 = Green
18 = Blue
19 = Yellow
20 = Purple
16
17
14
18
20
19
13
16
17
18
19
20
16
17
18
20
5
Number Trail & Teen Bonds
Write the missing numbers
A. Fill in the stepping stones on the trail:
15
Teen Explorers Answer Key Teen Explorers
Answer Key
Teacher Reference • Page 1 Solutions (16–20)
Grade K–1 Math Numbers 16, 17, 18, 19, 20
1
Part 1: Trace and Write Answers
Evaluation Criteria
16 Numeral 1 down; 6 begins top, curves down into a closed loop at bottom. Target: 16
17 Numeral 1 down; 7 starts top headline, goes straight right, slants to baseline. Target: 17
18 Numeral 8 formed with continuous “S” curve; avoids detached snowmen circles. Target: 18
19 Numeral 9 circle sits between headline and midline; straight vertical stem down. Target: 19
20 Numeral 2 curves clockwise and slides along baseline; 0 is an oval touching base. Target: 20
2
Part 2: Ten-Frame Counts
Solved Totals
Set A: Teal Counters 10 full + 6 extra ones
16
Set B: Green Counters 10 full + 7 extra ones
17
Set C: Blue Counters 10 full + 8 extra ones
18
Set D: Purple Counters 10 full + 10 full (2 full tens)
20
Observational Diagnostic Notes:
• Subitizing: Look for students who automatically say “ten” for the first complete frame rather than counting each dot from one.
• Number formation: Check for reversal in digits 6 and 7, and ensure numeral 1 precedes the ones digit consistently.
Answer Key • Teen Explorers Page 1 of 2
Teen Explorers • Page 2 Solutions
Connecting objects, bubble hunt totals, and bond solutions (16–20)
Answer Key
Part 3: Object Matching Key Matches
Mushrooms 10 + 6 items
→ 16
Leaves 10 + 7 items
→ 17
Acorns 10 + 8 items
→ 18
Apples 10 + 9 items
→ 19
Stars 10 + 10 items
→ 20
Part 4: Number Hunt Frequencies Found In Grid
16 (Teal) Found 3 times
17 (Green) Found 3 times
18 (Blue) Found 3 times
19 (Yellow) Found 2 times
20 (Purple) Found 3 times
Distractor numerals (13, 14) remain unshaded.
Part 5: Trail & Bond Answers Solutions
Trail Path: 15 → 16 → 17 → 18 → 19 → 20
10+6=16
10+7=17
10+8=18
10+9=19
10+10=20
Targeted Intervention:
• For students mixing up 16 and 19, reinforce that 16 has the loop touching the bottom (floor), while 9 has the loop touching the top (ceiling).
Teen Numbers Homework Packet 16
Home Expedition • Number 16
Family Math Connection • Monday Night
Student:
Family Note:
Today we learned that 16 is made of one full group of 10 and 6 extra ones . Ask your child to show you the full ten-frame and count on to 16!
1. Practice Writing 16 Trace three times, then write twice
16
16
16
2. Ten-Frame Shading: Fill in 16 Dots
3. Home Scavenger Hunt
Find 16 small objects at home (pennies, dry beans, cereal cheerios, or crayons). Group 10 together, then show the 6 ones!
What 16 items did you count?
10 + 6 = 16 Homework Packet • Page 1 of 5
17
Home Expedition • Number 17
Family Math Connection • Tuesday Night
Student:
Family Note:
Today your child practiced 17 as 10 and 7 more . Help them write 17 by chanting: “Across the sky and down from heaven, that makes 7!”
1. Practice Writing 17 Trace three times, then write twice
17
17
17
2. Count and Circle Exactly 17 Shapes
Circle 10 shapes together in a big loop, then count the 7 outside!
🔺🔺🔺🔺🔺 🔺🔺🔺🔺🔺 🔺🔺🔺🔺🔺 🔺🔺🔺🔺
3. Complete the Number Equation
How many ones are added to 10?
10+
=17
10 + 7 = 17 Homework Packet • Page 2 of 5
18
Home Expedition • Number 18
Family Math Connection • Wednesday Night
Student:
Family Note:
Today we learned that 18 has only 2 empty spaces in a double ten-frame! Encourage continuous curves when writing numeral 8.
1. Practice Writing 18 Trace three times, then write twice
18
18
18
2. Double Ten-Frame: Color 18 Boxes
3. Missing Part
What plus 8 equals 18?
+8=18
10 + 8 = 18 Homework Packet • Page 3 of 5
19
Home Expedition • Number 19
Family Math Connection • Thursday Night
Student:
Family Note:
Today we discovered that 19 is just 1 away from 20 ! When coloring 19 in double ten-frames, only one single circle remains blank.
1. Practice Writing 19 Trace three times, then write twice
Guided Math Practice Mat Small-Group Teen Builder Mat
Teacher-Led Small Group Station • Wipe-Clean Work Mat
Target
Card
1 First Ten-Frame (Ten Ones) 1 Full Ten = 10
2 Second Ten-Frame (Extra Ones) Loose Ones
Counter Storage Dock (Two-Color Counters or Cubes)
Keep extra counters here
My Number Equation:
10 +
=
Laminate or slide into a plastic sleeve!
Teen Number Bond Mat
Decomposing 16 to 20 into Ten and Ones
Part-Part-Whole
WHOLE (Teen Number)
Write Whole
PART 1 (The Ten)
10
PART 2 (Extra Ones)
Write Ones
Sentence Frame:
is 10 and
ones.
Draw Your Quick-Picks or Counters to Prove It:
Dry-erase work area for dots, sticks, and cubes
Part + Part = Whole • Numbers 16 to 20 Guided Math Mat • Page 2 of 2
Teacher Guided Facilitation Guide Teacher Guided Math Guide
Teacher Resource
Small-Group Instructional Protocol • Numbers 16 to 20
15-Minute Station Target: 4–6 Students
15-Minute Structured Small-Group Lesson Flow
Concrete → Representational → Abstract (CRA)
1. Concrete 5 Mins
Give each student 20 two-color counters and the Guided Practice Mat . Have students immediately fill the top frame with 10 red counters. Keep that ten intact!
2. Representational 5 Mins
Draw a numeral card (e.g., 18). Students add 8 yellow counters to the bottom frame. Prompt them to quick-draw their counters on the dry-erase mat using circles.
3. Abstract 5 Mins
Students write the number sentence: 10 + 8 = 18. Choral read: “18 is 10 ones and 8 extra ones.”
Scripted Teacher Questioning & Dialogue
Subitizing & Ten Foundation:
“Look at the first ten-frame. Do we need to count each dot starting from 1? Why not? Right, because when it is full, we know it is ALWAYS ten! Put your finger on it and say: 10!”
Counting On from 10:
“We have 10. Let's count on together to make 17: 10... [point to second frame] 11, 12, 13, 14, 15, 16, 17! How many extra ones did we add to 10?”
Connecting to 20:
“Look at 19. How many more dots do we need to make 20? Only ONE more! When both ten-frames are completely full, we have TWO tens, which makes 20!”
Recommended Manipulatives for Small-Group Table:
• Two-color counters (red for the full ten, yellow for the loose ones to visually separate tens and ones).
• Unifix / Snap Cubes in two contrasting colors (a rod of 10 plus loose individual cubes).
• Numeral flashcards 16–20 for students to pick and model independently.
Teacher Small-Group Guide Page 1 of 2
Diagnostics & Observation Tracker
Error Correction • Formative Assessment Checklist
Group Observations
Common Teen Number Misconceptions & Rapid Interventions
!
Reversal of Digits (e.g., writing 71 instead of 17, or 61 instead of 16):
Fix: Physically place the “10” card down first. Then slide the ones card (e.g. 7) right over the zero. Remind students: “The 1 always stands first because it stands for the ten!”
!
Counting All from One (Inefficient Counting):
Fix: Cover the full ten-frame with a card labeled “10”. Tap the card and say “10”, then uncover and touch only the ones (11, 12, 13...). Practice counting on repeatedly.
