Ten Up Teacher Guide Lesson 1 Guide • 1.NBT.C.5
Ten Up Launch Teacher Guide
Sequence: Ten Hop Academy Pacing: 45–50 Mins
Key Learning Objective
Students will mentally find 10 more than any two-digit number (10–89) without counting by ones, articulating that adding ten increases the tens place by exactly 1 while the ones place remains unchanged.
Lesson Flow & Facilitation Steps
1 Warm-Up: The Base-Ten Rod Drop (10 mins) Concrete → Visual
Display 3 tens and 4 ones (34) using base-ten blocks. Ask: "What number is this?" Drop one more ten-rod onto the mat. Ask: "Did my ones change? What changed?" Guide students to see that 3 tens became 4 tens, so 34 became 44. Repeat with 52 → 62.
2 Hundred-Chart Vertical Leaps (15 mins) Visual → Mental
Display a 120-chart. Place a marker on 47. Count forward 10 individual squares. Prompt: "Where did we land? Exactly one row down on 57!" Establish the golden rule: on a hundreds chart, jumping down one square is +10 . Have students test 23 → 33, 68 → 78.
3 Guided & Partner Practice (15 mins) Application
Distribute the Ten Up Practice Worksheet . Students complete the base-ten models, track the vertical hops, and write fast mental answers. Circulate to check for students who still count by ones instead of mentally shifting the tens digit.
4 Math Talk Debrief & Synthesis (8 mins) Reasoning
Call out: "Quick! 10 more than 81!" Call on a student to state the answer (91) and explain: "8 tens + 1 ten = 9 tens. The 1 one stays 1."
Teacher Talk Prompts
"Look at the tens place. What happens when we add 10?" "Why didn't the ones number change?" "Can you find 10 more in your head without using your fingers?" "If 5 + 1 = 6, what is 53 + 10?"
Watch-Outs & Solutions
Pitfall: Student counts on 10 ones on fingers.
Fix: Cover the ones place with a thumb: "What is 4 tens + 1 ten? Now add back your 7 ones: 57!"
Pitfall: Changing the ones digit instead (e.g., 34 + 10 = 35).
Fix: Highlight that 10 is 1 ten and 0 ones.
Support: Provide base-ten blocks or a highlighted vertical hundred-chart strip. Extend: Try 3-digit leaps (e.g., 10 more than 115).
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Ten Up Practice Worksheet Ten Hop Academy • Lesson 1
Ten Up Practice Worksheet
Name:
Date:
Frog Rule: When you add 10 more , the tens digit grows by 1 . The ones digit stays the same !
1 Base-Ten Blocks: Draw 1 More Ten Rod & Write the New Number
Start: 34 + 10 more
+ draw 1 rod →
34 + 10 =
Start: 51 + 10 more
+ draw 1 rod →
51 + 10 =
2 Hundreds Chart Leap: Hop Down 1 Row for +10
Chart Strip
27
?
Start on 27 .
Jump down 1 row (+10).
Landing:
Chart Strip
63
?
Start on 63 .
Jump down 1 row (+10).
Landing:
3 Fast Mental Leaps: Mentally Find 10 More (No Counting by Ones!)
10 more than 42 =
10 more than 18 =
10 more than 75 =
10 more than 36 =
10 more than 59 =
10 more than 80 =
4 Frog Talk: Explain Your Reasoning
Leo says: "10 more than 47 is 57 ." Explain how Leo knows this mentally without counting by ones.
Ten Hop Academy • Student Practice Page Page 1 of 1
Ten Up Partner Cards Partner Station • Lesson 1
Ten Up Partner Cards
Directions: Cut along dashed lines. Partner A flashes card, Partner B says 10 more!
Card #1 ✓ Ans: 38
Starting Number:
28
Think: 2 tens + 1 ten = 3 tens
What is 10 more?
Card #2 ✓ Ans: 53
Starting Number:
43
Think: 4 tens + 1 ten = 5 tens
What is 10 more?
Card #3 ✓ Ans: 71
Starting Number:
61
Think: 6 tens + 1 ten = 7 tens
What is 10 more?
Card #4 ✓ Ans: 26
Starting Number:
16
Think: 1 ten + 1 ten = 2 tens
What is 10 more?
Card #5 ✓ Ans: 85
Starting Number:
75
Think: 7 tens + 1 ten = 8 tens
What is 10 more?
Card #6 ✓ Ans: 99
Starting Number:
89
Think: 8 tens + 1 ten = 9 tens
What is 10 more?
Card #7 ✓ Ans: 40
Starting Number:
30
Think: 3 tens + 1 ten = 4 tens
What is 10 more?
Card #8 ✓ Ans: 64
Starting Number:
54
Think: 5 tens + 1 ten = 6 tens
What is 10 more?
Ten Hop Academy • Cut & Practice Cards Page 1 of 1
Ten Down Teacher Guide Lesson 2 Guide • 1.NBT.C.5
Ten Down Dive Teacher Guide
Sequence: Ten Hop Academy Pacing: 45–50 Mins
Key Learning Objective
Students will mentally find 10 less than any two-digit number (20–99) without counting backwards by ones, recognizing that taking away ten decreases the tens digit by exactly 1 while the ones digit stays identical.
Lesson Flow & Facilitation Steps
1 Concrete Warm-Up: The Takeaway Ten (10 mins) Concrete → Mental
Build 58 with base-ten blocks (5 tens, 8 ones). Ask a volunteer to physically remove 1 ten-rod. Prompt: "How many tens are left? (4 tens). How many ones? (8 ones). So 10 less than 58 is 48!" Reinforce: Only the tens place changed.
2 Hundreds Chart: Upward Leaps for 10 Less (15 mins) Visual Pattern
Show a large 100-chart. Locate 74. Count back 10 individual spaces to land on 64. Point out the spatial pattern: jumping UP one row is −10 . Ask: "Why up? Because the numbers get smaller as we climb to the top!" Practice together: 92 → 82, 35 → 25.
3 Independent / Paired Practice (15 mins) Application
Students work on the Ten Down Practice Worksheet . Emphasize mental visualization: students should picture the tens digit stepping down one step on a ladder (e.g., 6 tens becomes 5 tens).
4 Debrief & Contrast Discussion (8 mins) Synthesis
Contrast Lesson 1 and Lesson 2: "When we found 10 more, we went DOWN one row and tens went up. When we find 10 less, we go UP one row and tens go down!"
Teacher Talk Prompts
"If 7 minus 1 is 6, what is 76 minus 10?" "Did any ones get taken away? Why not?" "How can we check our answer using mental addition?" "What is 10 less than 15? (Watch for 5!)"
Critical Misconceptions
Pitfall: Subtracting from the ones place (e.g., 48 − 10 = 47 or 38 vs 40).
Fix: Write 48 as "4 tens, 8 ones". Subtract 1 ten. How many tens? 3 tens! Ones? Still 8!
Pitfall: Chart confusion (thinking jumping down means numbers decrease).
Fix: Have student read numbers above and below to confirm direction.
Support: Provide a "Ten Frame / Rod Removal" desktop card. Extend: "I am 10 less than 95 and 10 more than 75. Who am I?" (85).
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Ten Down Practice Worksheet Ten Hop Academy • Lesson 2
Ten Down Practice Worksheet
Name:
Date:
Frog Dive Rule: When you take away 10 less , the tens digit drops by 1 . The ones digit stays the same !
1 Base-Ten Blocks: Cross Out 1 Ten Rod (X) & Write the New Number
Start: 46 − 10 less
Cross out 1 rod →
46 − 10 =
Start: 62 − 10 less
Cross out 1 rod →
62 − 10 =
2 Hundreds Chart Hop: Jump UP 1 Row for −10
Chart Strip
?
54
Start on 54 .
Jump UP 1 row (−10).
Landing:
Chart Strip
?
89
Start on 89 .
Jump UP 1 row (−10).
Landing:
3 Fast Mental Dives: Mentally Find 10 Less (No Finger Counting!)
10 less than 73 =
10 less than 31 =
10 less than 95 =
10 less than 28 =
10 less than 64 =
10 less than 17 =
4 Frog Talk: Explain Your Reasoning
Maya says: "10 less than 68 is 58 ." Explain how Maya solved this in her head using place value.
Ten Hop Academy • Student Practice Page Page 1 of 1
Ten Down Puzzle Activity Activity Mat • Lesson 2
Ten Down Puzzle Activity
Name:
Date:
1 Lily Pad Chains: Hop 10 Less on Each Pad to Fill the Blanks
Chain A:
84 −10 → 74 −10 → −10 →
Chain B:
92 −10 → −10 → 72 −10 →
Chain C:
55 −10 → −10 → −10 → 25
2 Ten Down Riddles: Read the Clues & Write the Secret Number
Riddle 1: "I am 10 less than 79 . My tens digit has 6 tens and my ones digit has 9 ones."
Who am I?
Riddle 2: "I am 10 less than 35 . My ones digit is 5 and my tens digit is 2."
Who am I?
Riddle 3: "If you give me 10 more , you get 61 . What number am I right now?"
Who am I?
Riddle 4: "I have 2 tens and 0 ones . Take away 10. What number is left?"
Who am I?
3 Pond Maze: Color or Circle the Path That Jumps 10 Less Each Time!
Start at 97 at the top left. Follow the connected squares that are 10 less until you reach 17 at the bottom right!
97 (START)
96
45
82
87
77
67
68
54
73
57
47
22
38
37
17 (FINISH)
Ten Hop Academy • Activity Mat Page 1 of 1
Ten Hop Teacher Guide Lesson 3 Guide • 1.NBT.C.5
Ten Hop Teacher Guide
Sequence: Ten Hop Academy Pacing: 45–50 Mins
Key Learning Objective
Students will fluidly toggle between finding 10 more and 10 less mentally for any two-digit number, solve cross-grid window puzzles, and articulate their reasoning using place-value vocabulary.
Instructional Flow & Master Routines
1 Warm-Up: Rapid Fire "Up or Down" Rally (8 mins) Fluency
Call out a number and direction: "48... 10 more!" Students call back in unison: "58!" Then: "58... 10 less!" → "48!" Increase speed. Include non-round numbers like 13, 86, 39, 70.
2 Hundred-Chart Cross-Grid Windows (12 mins) Spatial → Abstract
Introduce the "Plus Sign" (+ shape) window from the hundreds chart. Center number is 45. Ask: "What number is above? (35 → 10 less). What number is below? (55 → 10 more)." Contrast with left (−1) and right (+1). Emphasize: vertical movement always changes tens!
3 Independent Practice: Ten Hop Quest (15 mins) Application
Students solve cross-grid puzzles and two-way hop ladders on the Ten Hop Quest Worksheet . Encourage mental self-talk: "Look at the tens place first!"
4 Individual Mastery Check (10 mins) Assessment
Administer the Ten Hop Mastery Assessment . Use the oral check prompt at the bottom to listen to at least 4–5 target students explain their reasoning aloud.
Evidence of True Mastery
Answers within 2–3 seconds without finger counting or tapping.
Can clearly state: "Only the tens place changes because 10 has 0 ones."
Accurately navigates cross-grids (+10 below, −10 above).
Handles edge cases like 10 more than 89 (99) and 10 less than 14 (4).
Targeted Support & Extension
Tier 2 Intervention: Use color-coded numeral cards where the tens digit is blue and ones is green. Swap only the blue card.
Extension Challenge: Introduce 20 more (+2 tens) or 20 less (−2 tens) to test generalization of the place-value pattern.
Formative Tool: Use assessment interview rubric for report cards. Standard: CCSS.MATH.CONTENT.1.NBT.C.5
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Ten Hop Quest Worksheet Ten Hop Academy • Lesson 3
Ten Hop Quest Worksheet
Name:
Date:
Master Rule: Hop UP for 10 less (−1 ten). Hop DOWN for 10 more (+1 ten). Ones never change!
1 Cross-Grid Windows: Fill in 10 Less (Top) & 10 More (Bottom)
Window A
↑ 10 less
53
↓ 10 more
Window B
↑ 10 less
28
↓ 10 more
Window C
↑ 10 less
71
↓ 10 more
2 Two-Way Leaps: Fill in Both 10 Less and 10 More for Each Number
← 10 Less (−10) My Starting Number 10 More (+10) → 36 74 50 82
3 Lightning Mental Sprint: Watch the Sign! (+ or −)
10 more than 15 =
10 less than 49 =
10 less than 91 =
10 more than 67 =
10 less than 85 =
10 more than 78 =
4 Math Reasoning: Compare the Digits
Start with 42 . If you find 10 more , you get 52 . If you find 10 less , you get 32 . What happened to the tens digit in each? What happened to the 2?
Ten Hop Academy • Student Practice Page Page 1 of 1
Ten Hop Mastery Assessment Summative Check • 1.NBT.C.5
Ten Hop Mastery Assessment
Name:
Score: / 10
1 Mental Math Check: Write the Answer in the Box (Do Not Count by Ones)
1. What is 10 more than 37 ?
2. What is 10 less than 64 ?
3. What is 10 more than 81 ?
4. What is 10 less than 29 ?
5. What is 10 more than 50 ?
6. What is 10 less than 93 ?
2 Grid Windows: Fill in 10 Less (Above) and 10 More (Below)
Cross A:
46
← 10 less
← 10 more
Cross B:
75
← 10 less
← 10 more
3 Explain Your Reasoning (Standard 1.NBT.5 Requirement)
When asked to find 10 more than 54 , Toby says 55 . Ava says 64 .
Who is correct? (Circle one): Toby Ava
Explain why the correct answer is right using what you know about tens and ones:
Teacher Scoring Rubric • 1.NBT.C.5
Interview Checked: □ Yes □ No
3 - Mastered
Answers mentally within 3 seconds. Clearly explains tens place increases/decreases by 1 and ones place does not change.
□ Level 3
2 - Approaching
Accurate mental math but pauses 5+ seconds. Needs verbal cue to explain why ones digit stays the same.
□ Level 2
1 - Emerging
Attempts to count on/back by ones on fingers. Changes ones place instead of tens (e.g., 54 + 10 = 55).
□ Level 1
Ten Hop Academy • Summative Unit Assessment Page 1 of 1
