Math Launchpad Checkpoint 1 • Sequence • Lenny.com
Math Launchpad Checkpoint 1
A 9-week daily morning work spiral review program designed for 3rd grade. Programmed specifically for Indiana ILEARN Checkpoint 1 standards (place value, addition, subtraction, and multiplication foundations) with three tiered entry points.
Logic: Odd number, hundreds digit is 8. Since it rounds to 3,800, thousands digit must be 3. Since thousands is 3 times the tens, tens is 1. Odd digit must round 3,815 to 3,800. Answer is 3,815 (5 is odd).
Trajectory Tuesday Key
Level 1: A. 63 (students jump 38 ➔ +20 ➔ +5); B. 44 (students jump 72 ➔ -20 ➔ -8)
Level 3: Correct combinations for 36: 4 × 9, 6 × 6, 3 × 12, or 2 × 18. Students must model two of these arrays.
Thrust Thursday Key
Level 1: Partitions must show equal portions. Shade: 3 blocks. Fraction: 3/4; Words: Three-fourths.
Level 2: Number line should be split into 6 equal segments. Point at the 5th mark from the left. Explanation: "I divided the line into 6 steps and counted 5."
Level 3: Are they equivalent? Yes, they are equivalent.
Logic: 2/3 and 4/6 cover the exact same distance. On a number line or model, 2 out of 3 blocks is the identical length as 4 out of 6 blocks.
Flyby Friday Key
Level 1: Analog clock: hour hand near the 8 (slightly past), minute hand pointing exactly at the 3. Digital: 08:15 AM.
Level 2: Metric formulas:
Total collected: 15 + 25 + 30 = 70 pieces
Friday comparison: 30 - 15 = 15 more pieces
Level 3: Flight elapsed duration: 37 minutes.
Pacing Logic: 9:37 to 10:00 = 23 minutes. 10:00 to 10:14 = 14 minutes. Total flight: 23 + 14 = 37 minutes.
🚀 Weekly Debrief Routine:
Conclude each morning with a 5-minute math discussion. Highlight one Level 1 visual model and connect it explicitly to a Level 2 array/equation or Level 3 extension. Help students recognize that standard 3rd-grade algorithms emerge directly from simple 2nd-grade models.
Indiana ILEARN Checkpoint Math Implementation Series Page 2 of 2
Estimated Sum: ____________ kg
Exact Sum: ____________ kg
🌌 Level 3: Deep Space
If you round two numbers to the nearest hundred, their estimated sum is 800. What are the smallest two starting numbers that could have rounded to make this estimated sum?
Smallest Value Proof:
Smallest Numbers: __________ and __________
Checkpoint 1 Assessment Program Page 3 of 9
QUIZ
Week 4: Addition Engine
Name: ______________________
Date: ______________________
Standard: IAS 3.C.1 (Add fluently within 1,000 with or without regrouping)
🚀 Level 1: Launch Pad
Solve the standard calculation without regrouping:
342
+ 254
_____
🛰️ Level 2: Orbit
Solve with standard regrouping. Show your regrouped units in boxes above:
586
+ 247
_____
🌌 Level 3: Deep Space
Find the missing digit values for A and B:
2 A 6
+ 3 5 B
6 3 1
Digit A value: _________________
Digit B value: _________________
Checkpoint 1 Assessment Program Page 4 of 9
QUIZ
Week 5: Subtraction Core
Name: ______________________
Date: ______________________
Standard: IAS 3.C.1 (Subtract fluently within 1,000 with or without regrouping)
🚀 Level 1: Launch Pad
Solve the standard vertical calculation without regrouping:
789
- 435
_____
🛰️ Level 2: Orbit
Solve with standard regrouping across zero columns:
603
- 275
_____
🌌 Level 3: Deep Space
Fill in the missing values to make this balancing equation true:
800 - 345 = 600 - __________
Tip: First solve 800 - 345, then find the equivalent subtracted value!
Checkpoint 1 Assessment Program Page 5 of 9
QUIZ
Week 6: Operations Scenarios
Name: ______________________
Date: ______________________
Standard: IAS 3.C.2 (Solve multi-step whole number addition & subtraction word problems)
🚀 Level 1: Launch Pad
A satellite recorded **145 transmissions** on Monday and **230 transmissions** on Tuesday. How many combined transmissions did it record?
Combined Transmissions: _________________
🛰️ Level 2: Orbit
A supply ship is loaded with **800 cargo crates**. Crew members unload **245 crates** at Moon Station Alpha and **318 crates** at Station Beta. How many crates are left on the ship?
Show your two steps:
Crates Remaining: _________________
🌌 Level 3: Deep Space
Write your own 2-step story problem using addition and subtraction where the final answer is exactly 150 light-years.
Your Word Problem & Mathematical Proof:
Checkpoint 1 Assessment Program Page 6 of 9
QUIZ
Week 7: Equal Groups
Name: ______________________
Date: ______________________
Standard: IAS 3.C.3 (Represent multiplication of whole numbers using equal groups)
🚀 Level 1: Launch Pad
Draw 5 groups with 3 stars in each group. Then write the matching multiplication equation.
Equation: ______ × ______ = ______
🛰️ Level 2: Orbit
There are **7 spacecraft pods**. If each pod holds exactly **6 astronaut suits**, how many suits are there in total? Solve using skip-counting or repeated addition.
Total Astronaut Suits: _________________
🌌 Level 3: Deep Space
A cargo carrier holds **9 container crates**. Each container has **4 bags**. Inside each bag, there are **2 survival meals**. How many total survival meals are packed?
Compound equal-groups proof:
Grand Total Meals: _________________
Checkpoint 1 Assessment Program Page 7 of 9
QUIZ
Week 8: Designing Arrays
Name: ______________________
Date: ______________________
Standard: IAS 3.C.4 (Represent multiplication of whole numbers using rectangular arrays)
🚀 Level 1: Launch Pad
Write the dimensions of the array grid below. How many dots total?
______ Rows and ______ Columns
Total Dots: ______ × ______ = ______
🛰️ Level 2: Orbit
Draw an array representing a layout totaling exactly 28 plates. Write the multiplication equation.
Equation: ______ × ______ = 28
🌌 Level 3: Deep Space
A solar technician has a large 6 × 8 array. She splits it into a 4 × 8 array and a 2 × 8 array. Prove using calculations that the combined output is the same.
Decomposition Workspace:
Prove: ______ + ______ = ______
Checkpoint 1 Assessment Program Page 8 of 9
QUIZ
Week 9: Division Foundations
Name: ______________________
Date: ______________________
Standard: IAS 3.C.3 & 3.C.4 (Analyze relationships between multiplication and division)
🚀 Level 1: Launch Pad
Divide **15 cargo cells** equally into **3 space shuttles**. Draw circles to group the stars below, then write the division equation.
⭐⭐⭐⭐⭐⭐⭐⭐⭐⭐⭐⭐⭐⭐⭐
Equation: 15 ÷ 3 = ______ cells per shuttle
🛰️ Level 2: Orbit
The command hangar has **45 pilot helmets**. If each locker holds exactly **5 helmets**, how many lockers are needed? Use a related multiplication fact to prove your answer.
There are **48 solar panel fragments**. If they are split into **6 equal boxes**, and then 3 fragments from EACH box are discarded because they are broken, how many usable fragments remain in EACH box?
Multi-step partition proof:
Usable Fragments per Box: _________________
Checkpoint 1 Assessment Program Page 9 of 9
+ 385
_____
Don't forget to regroup ones to tens and tens to hundreds!
594
+ 227
_____
Double-check your place values.
L3
Level 3: Deep Space (Alien Grid Decoding)
An alien signal contains an incomplete addition array. Discover the values of the letters **X** and **Y** to solve the transmission.
3 X 8
+ 2 7 Y
6 4 3
Scratchpad and Proof:
Alien Solution: X = ________ | Y = ________
Indiana ILEARN Checkpoint 1 Math Spiral Page 2 of 5
Checkpoint 1 Weeks 4-6 Operations
Flight Path Operations: Week 4
Name: ______________________
Date: ______________________
🌀 Wednesday: Subtraction Deceleration Low Floor ➔ High Ceiling
L1
Level 1: Launch Pad (Constant Difference Jumps)
Solve 63 - 27 by jumping back on the number line. Write your intermediate milestones!
Interactive Line: Jump back 20 first, then 7!
63
Final Landing Spot: _________
L2
Level 2: Orbit (Zero Gravity Borrowing)
Solve these subtraction challenges. Regroup across zeros with precision.
502
- 248
_____
Remember: You can't borrow from 0. Go to the hundreds place!
800
- 436
_____
A double regrouping is required here!
L3
Level 3: Deep Space (Debris Math Matrix)
A spacecraft's fuel payload was reduced by **387 kg**, leaving exactly **415 kg** in reserves. Determine the initial fuel payload, then write a balanced subtraction equation using three-digit numbers.
The Challenge:
Work backwards to determine the starting fuel amount. Use reverse operations.
Indiana ILEARN Checkpoint 1 Math Spiral Page 3 of 5
Checkpoint 1 Weeks 4-6 Operations
Flight Path Operations: Week 4
Name: ______________________
Date: ______________________
🔋 Thursday: Cargo Manifests Low Floor ➔ High Ceiling
L1
Level 1: Launch Pad (Cargo Tallies)
Use the simple tally box to calculate total items packed in standard containers.
🛰️ Crates: 25 units
🛰️ Barrels: 18 units
Calculate:
What is the combined weight of crates and barrels?
25 + 18 = ______ units
L2
Level 2: Orbit (Supply Depots)
The Moon outpost has **345 food rations**. The Mars colony has **582 food rations**.
outpost comparison:
1. Combined Rations:
______ + ______ = ______
2. Difference:
______ - ______ = ______
Be careful with regrouping when subtracting!
L3
Level 3: Deep Space (Sector Rations Audit)
The supply center houses **950 energy packs**. Sector Alpha took **284 packs**. Sector Beta took **319 packs**.
Audit Challenge:
Calculate the total packs taken first, then subtract from the starting balance to find remaining packs.
Audit Workspace:
Total Taken: _______ | Remaining Packs: _______
Indiana ILEARN Checkpoint 1 Math Spiral Page 4 of 5
Checkpoint 1 Weeks 4-6 Operations
Flight Path Operations: Week 4
Name: ______________________
Date: ______________________
🌠 Friday: Mission Problems Low Floor ➔ High Ceiling
L1
Level 1: Launch Pad (Oxygen Levels)
The secondary module holds **45 liters** of air. The primary module holds **38 liters** of air. How many liters combined do they hold?
Equation and Solution:
45 + 38 = ______ liters of air.
L2
Level 2: Orbit (Satellite Orbit Drift)
A communications satellite has completed **365 orbits**. It needs to reach **600 orbits** before its solar batteries are decommissioned. How many more orbits are required?
Orbit Flight Log Worksheet:
Remaining Orbits Required: ______________________
L3
Level 3: Deep Space (Interstellar Travel Manifest)
Commander Vance traveled **284 light-years** in Year 1, and **356 light-years** in Year 2. If his total fuel allows exactly **800 light-years** of travel, how many light-years of reserve does he have left?
The Operations Flow:
Combine Year 1 & 2 distance, then calculate remaining reserve value from the total potential.
Manifest calculations:
Total Reserve Left: _________________ light-years
Indiana ILEARN Checkpoint 1 Math Spiral Page 5 of 5
Monday: Flight Calibration
Level 1: A. 50 | B. 90 | C. 90 | D. 50 | E. 50 | F. 40
Level 2:
Alpha Estimation: 400 + 400 = 800; Actual = 801
Beta Estimation: 700 - 300 = 400; Actual = 427
Level 3: Path A = 265 | Path B = 350
Pacing: Path A sum is 465 (145+320); 200+265 = 465. Path B difference is 450 (600-150); 800-350 = 450.
Tuesday: Addition Docking
Level 1: Base-10 model drawing should show 3 hundreds flats, 7 tens rods, and 14 ones units. Regrouping 10 ones results in 3 hundreds, 8 tens, and 4 ones. Sum = 384.
Level 2: Algorithm 1: 861 (regrouping in ones/tens). Algorithm 2: 821 (regrouping in ones/tens).
Level 3:X = 6, Y = 5.
Proof: 8 + Y must end in 3, so Y = 5 (8+5=13, carry 1). Tens: 1 + X + 7 ends in 4, so X must be 6 (1+6+7=14, carry 1). Hundreds: 1 + 3 + 2 = 6, which matches the final 6.
Wednesday: Subtraction
Level 1: Jump back 20 from 63 to land on 43. Jump back 7 from 43 to land on 36. Final landing = 36.
Proof: Total traveled is 284 + 356 = 640 light-years. Remaining distance potential is 800 - 640 = 160 light-years.
📊 Strategic Assessment Tip:
Review Friday's "Deep Space" multi-step problem. Many students may add Year 1 and Year 2 but forget to subtract from 800. Scaffold this by asking: "We know where we've been, but how does that help us find what's left in the fuel tank?"
Indiana ILEARN Checkpoint Math Implementation Series Page 2 of 2
To safely bypass a power surge, split a large 7 × 8 solar array into two smaller arrays: **(5 × 8)** and **(2 × 8)**.
The Distributive Formula:
Calculate the output of each smaller segment, then add them together to prove they equal the total of the original 7 × 8 array.
Equation Proof Workspace:
(5 × 8) + (2 × 8) = ______ + ______ = ______
Indiana ILEARN Checkpoint 1 Math Spiral Page 2 of 5
Checkpoint 1 Weeks 7-9 Multiplication Foundations
Nebula Groups: Week 7
Name: ______________________
Date: ______________________
🌀 Wednesday: Cargo Partitioning Low Floor ➔ High Ceiling
L1
Level 1: Launch Pad (Fair Sharing)
You have **12 rations**. Distribute them equally among **3 crew cabins**. Draw loops to partition the cards.
🍞🍞🍞🍞🍞🍞 🍞🍞🍞🍞🍞🍞
Cabins: 3 | Rations per Cabin: ______
Division: 12 ÷ 3 = ______ rations
L2
Level 2: Orbit (Hangar Loading)
The main hangar contains **32 fighter craft**. If each flight squad requires exactly **8 craft**, how many fully equipped squads can be launched?
Write your equations below:
Multiplication Equation (inverse):
______ × 8 = 32 squads.
Division Equation:
32 ÷ 8 = ______ squads
Think: What subtraction or additions patterns did you use?
L3
Level 3: Deep Space (Sector Logistics Partitioning)
A commander needs to split **48 heavy batteries** across **6 exploration rovers**. If 2 rovers are damaged and cannot hold batteries, how many batteries must go on each of the remaining rovers?
The Problem Strategy:
Calculate working rovers first, then partition the 48 batteries equally among them.
Logistics Calculations:
Working Rovers: ______ | Batteries per Rover: ______
Indiana ILEARN Checkpoint 1 Math Spiral Page 3 of 5
Checkpoint 1 Weeks 7-9 Multiplication Foundations
Nebula Groups: Week 7
Name: ______________________
Date: ______________________
🔋 Thursday: Star Skip Jumps Low Floor ➔ High Ceiling
L1
Level 1: Launch Pad (Skip Counting Line)
Skip count by **5s** on the number line below to reach 30. Draw your arrows.
Draw skip-count lines:
0 5 10 15 20 25 30
How many groups of 5 are in 30? _________
L2
Level 2: Orbit (Asteroid Multiplication Trails)
Complete the multiplication jump patterns below.
Skip count by 3s:
3, 6, 9, 12, ______, ______, ______
Solve: 7 × 3 = ______
Skip count by 4s:
4, 8, 12, 16, ______, ______, ______
Solve: 7 × 4 = ______
L3
Level 3: Deep Space (Interstellar Scale Rules)
An engine produces **9 units of power** per second. Complete the sequence representing power totals across 7 seconds. Write down the pattern rule.
The Power Pattern:
Skip-count by 9s to fill in the timeline. Use patterns like adding 10 and subtracting 1 to work quickly!
Power Output Schedule (9s):
9, 18, 27, ______, ______, ______, ______
Output after 7 seconds: ______ units of power.
Indiana ILEARN Checkpoint 1 Math Spiral Page 4 of 5
Checkpoint 1 Weeks 7-9 Multiplication Foundations
Nebula Groups: Week 7
Name: ______________________
Date: ______________________
🌠 Friday: Critical Missions Low Floor ➔ High Ceiling
L1
Level 1: Launch Pad (Alien Artifacts)
An astronaut collects **4 mineral jars**. Each jar has **3 glowing crystals** inside. Draw the crystals and find the total.
🫙🫙🫙🫙
Addition calculation: 3 + 3 + 3 + 3 = ______
Total crystals collected: ______________________
L2
Level 2: Orbit (Hangar Decoupling)
A commander needs to store **42 spare wheels** in rows. If each row can hold exactly **7 wheels**, how many rows of wheels will there be? Draw or show a division formula.
Division calculation:
Answer: ______ Rows | Equation: 42 ÷ 7 = ______
L3
Level 3: Deep Space (Interstellar Crew Partitioning)
There are **64 explorers** preparing for a long-distance jump. They are split into **8 equal groups**. If each group contains exactly **2 officers** and the rest are scientists, how many scientists are in EACH group?
The Problem Logic:
1. Divide the 64 explorers into the 8 groups.
2. For each group size, subtract the 2 officers to find the number of scientists.
Your Math Proof Workspace:
Scientists per group: _________________ scientists
Indiana ILEARN Checkpoint 1 Math Spiral Page 5 of 5
Level 3: Working Rovers: 4 rovers | Batteries per Rover: 12 batteries.
Proof: There are 6 rovers initially, but 2 are damaged, leaving 4 working. 48 batteries distributed across 4 working rovers equals 12 batteries per rover (48 ÷ 4 = 12).
Thursday: Skip Jumps
Level 1: Draw 6 equal hops of 5 to reach 30. Answer: There are 6 groups of 5 in 30.
Level 2:
3s pattern: 15, 18, 21; 7 × 3 = 21.
4s pattern: 20, 24, 28; 7 × 4 = 28.
Level 3: Sequence: 36, 45, 54, 63; Output after 7 seconds: 63 units of power.
Proof: 64 explorers divided into 8 equal groups results in 8 explorers per group (64 ÷ 8 = 8). If each group has 2 officers, the rest are scientists (8 - 2 = 6).
📊 Checkpoint 1 Benchmark Check:
Use Friday's "Deep Space" problem as a formative diagnostic. If a student correctly finds that there are 8 explorers per group but stops there, they have mastered multiplication/division but need coaching on parsing multi-step reading problems.
Indiana ILEARN Checkpoint Math Implementation Series Page 2 of 2
