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Created bySherlyn Cruz

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Lucky Launchers: A Gold Coin Engineering Challenge

Grade 2MathScienceArtTechnology4 days

"Lucky Launchers" invites second-grade students to become "Leprechaun Engineers" as they design, build, and decorate functional coin-launching machines for a festive St. Patrick's Day challenge. Applying the Engineering Design Process, students create blueprints and construct models to investigate how varying force and angles impact the distance and accuracy of their gold coin projectiles. Participants measure their results in inches and represent findings through bar graphs to analyze performance and iterate on their designs. The project concludes with students balancing structural stability with creative artistic elements to ensure their launchers are both mechanically sound and thematically festive.

EngineeringForceMotionMeasurementDataDesignIteration

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Inquiry Framework

Question Framework

Driving Question

The overarching question that guides the entire project.How can we, as Leprechaun Engineers, design and decorate a "Lucky Launcher" that uses science and data to accurately return gold coins to the pot of gold?

Essential Questions

Supporting questions that break down major concepts.

What materials and shapes make a launcher strong enough to send a coin into the air?
How does the strength of our 'push' or 'pull' change how far the gold coin travels?
How can we use a chart or graph to track our hits and misses?
How do different angles (tilting the launcher) help us hit a target that is close or far away?
How can we use art and colors to make our launcher look like it belongs in a St. Patrick's Day story?
When our launcher doesn't hit the pot, how can we use the Engineering Design Process to fix it?

Standards & Learning Goals

Learning Goals

By the end of this project, students will be able to:

Students will apply the Engineering Design Process (Plan, Create, Test, Improve) to design and calibrate a functional coin launcher.
Students will investigate and explain how varying the strength of a 'push' or 'pull' and the angle of launch affects the distance and accuracy of a projectile.
Students will collect and record data from multiple trials and represent that data using a simple bar graph or picture graph to analyze launcher performance.
Students will select and utilize appropriate materials and artistic elements to create a themed launcher that balances structural stability with aesthetic design.

Next Generation Science Standards (NGSS)

K-2-ETS1-3

Primary

Analyze data from tests of two objects designed to solve the same problem to compare the strengths and weaknesses of how each performs.Reason: This is the core of the project: testing the launcher, tracking hits/misses, and using that data to improve the design.

K-2-ETS1-2

Secondary

Develop a simple sketch, drawing, or physical model to illustrate how the shape of an object helps it function as needed to solve a given problem.Reason: Students must design the physical structure of the launcher and understand how its shape (and the angle) contributes to its function.

Common Core State Standards for Mathematics

2.MD.D.10

Primary

Draw a picture graph and a bar graph (with single-unit scale) to represent a data set with up to four categories. Solve simple put-together, take-apart, and compare problems using information presented in a bar graph.Reason: Students are specifically asked to use a chart or graph to track their hits and misses during the calibration phase.

2.MD.A.1

Secondary

Measure the length of an object by selecting and using appropriate tools such as rulers, yardsticks, meter sticks, and measuring tapes.Reason: To track accuracy and distance (close vs far targets), students will need to measure the distance the coin travels.

National Core Arts Standards

VA:Cr2.1.2a

Supporting

Experiment with various materials and tools to explore personal interests in a work of art or design.Reason: This aligns with the goal of decorating the launcher to look like it belongs in a St. Patrick's Day story using specific colors and themes.

Entry Events

Events that will be used to introduce the project to students

The Leprechaun’s Muddy Mess

Students arrive to find a giant 'scroll' from Lucky the Leprechaun explaining that he accidentally dropped his gold into a deep, muddy swamp (the classroom floor). To get it back into his pots without stepping in the mud, he needs 'Master Engineers' to build a delivery system that can launch coins from a safe distance.

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Portfolio Activities

These activities progressively build towards your learning goals, with each submission contributing to the student's final portfolio.

Activity 1

Blueprint for Luck: Designing the Launcher

Before building, students must think like engineers by visualizing their solution. In this activity, students will brainstorm how different shapes (like a lever or a base) will help launch their gold coin. They will create a labeled blueprint of their 'Lucky Launcher' to plan their construction.

Steps

Here is some basic scaffolding to help students complete the activity.

1. Examine the available materials (craft sticks, rubber bands, bottle caps, tape) and discuss how their shapes might help a coin fly.

2. Draw a detailed 'Master Plan' of the launcher on a piece of paper, showing where the 'bucket' (to hold the coin) and the 'spring' (the part that provides force) will go.

3. Label at least three parts of the drawing (e.g., base, arm, coin holder).

4. Circle the part of the design that they think will be the strongest.

Final Product

What students will submit as the final product of the activityA labeled 'Lucky Launcher Blueprint' featuring a drawing of the design, a list of materials needed, and a short sentence explaining how the launcher will move.

Alignment

How this activity aligns with the learning objectives & standardsAligns with NGSS K-2-ETS1-2: Develop a simple sketch, drawing, or physical model to illustrate how the shape of an object helps it function as needed to solve a given problem.

Activity 2

The Emerald Engineer’s Workshop

Students transition from paper to physical construction. They will use their blueprints to build their launchers, focusing on structural stability. Once the structure is functional, they will use 'Leprechaun-approved' artistic elements to decorate their machine, ensuring it fits the St. Patrick's Day theme while remaining a working tool.

Steps

Here is some basic scaffolding to help students complete the activity.

1. Follow the blueprint to build the base and the launching arm using craft sticks and tape.

2. Attach the 'power source' (like a rubber band or the tension of the wood) and test a small 'flick' to ensure it moves.

3. Decorate the launcher using green markers, gold glitter, or paper shamrocks, making sure the decorations don't block the moving parts.

4. Give the launcher a creative name and write it on the side.

Final Product

What students will submit as the final product of the activityA fully constructed and decorated 'Lucky Launcher' that is capable of launching a plastic gold coin at least 12 inches.

Alignment

How this activity aligns with the learning objectives & standardsAligns with National Core Arts Standards VA:Cr2.1.2a: Experiment with various materials and tools to explore personal interests in a work of art or design.

Activity 3

The Golden Trials: Measuring Distance

Now that the launchers are built, students must calibrate them. They will test how different 'pushes' (force) and 'angles' (positioning) change how far the gold coin travels. This activity introduces the concept of distance and the importance of using tools to measure physical results.

Steps

Here is some basic scaffolding to help students complete the activity.

1. Set up a starting line on the floor and lay out a tape measure or yardstick extending away from the launcher.

2. Launch the gold coin three times, attempting to use the same amount of force each time.

3. After each launch, use a ruler or tape measure to find out how many inches the coin traveled from the launcher to where it landed.

4. Record each distance in the 'Distance Discovery Log' and identify which launch went the farthest.

Final Product

What students will submit as the final product of the activityA 'Distance Discovery Log' showing the measurements of three different launches in inches or centimeters.

Alignment

How this activity aligns with the learning objectives & standardsAligns with CCSS.MATH.CONTENT.2.MD.A.1: Measure the length of an object by selecting and using appropriate tools such as rulers, yardsticks, meter sticks, and measuring tapes.

Activity 4

The Pot of Data: Graphing for Accuracy

In the final stage, students test their accuracy by trying to hit a 'Pot of Gold' (a small cup or bowl). They will record their hits and misses over 10 trials and represent this data visually. Finally, they will look at their graph to decide if they need to change their design to be more accurate.

Steps

Here is some basic scaffolding to help students complete the activity.

1. Place the 'Pot of Gold' at a set distance (e.g., 2 feet away). Launch the coin 10 times.

2. Tally how many coins landed 'In the Pot' versus 'In the Mud' (misses).

3. Create a simple bar graph with two columns: 'Hits' and 'Misses' to show the results of the 10 trials.

4. Look at the data: if they had more misses than hits, write down one idea to fix the launcher (e.g., 'Make the arm longer' or 'Change the angle').

Final Product

What students will submit as the final product of the activityA 'Target Tally' Bar Graph and a 'Leprechaun Reflection' stating one thing they would change to make the launcher better.

Alignment

How this activity aligns with the learning objectives & standardsAligns with CCSS.MATH.CONTENT.2.MD.D.10 (Draw a picture graph/bar graph to represent data) and NGSS K-2-ETS1-3 (Analyze data from tests of two objects to compare strengths and weaknesses).

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Rubric & Reflection

Portfolio Rubric

Grading criteria for assessing the overall project portfolio

Leprechaun Engineer: Lucky Gold Coin Launcher Rubric

Category 1

Engineering Design & Construction

Focuses on the NGSS Engineering Design Process, from initial planning to physical construction and stability.

Criterion 1

Scientific Sketching & Planning (Blueprint)

The ability to translate an idea into a visual plan using sketches, labels, and explanations of function.

Exemplary

4 Points

Blueprint is exceptionally detailed with clear labels for all parts; the explanation of how the launcher moves is sophisticated and demonstrates a deep understanding of force and shape.

Proficient

3 Points

Blueprint includes a clear drawing with at least three labels and a complete sentence explaining how the launcher functions.

Developing

2 Points

Blueprint includes a basic drawing with 1-2 labels; the explanation of function is partial or unclear.

Beginning

1 Points

Blueprint is incomplete, lacks labels, or does not clearly show how the launcher is intended to work.

Criterion 2

Structural Engineering & Functionality

The ability to construct a physical model that is stable, functional, and meets the specific performance goal (launching 12+ inches).

Exemplary

4 Points

The launcher is highly stable, shows innovative use of materials, and consistently launches the coin well beyond the 12-inch requirement with ease.

Proficient

3 Points

The launcher is built according to the blueprint, is structurally sound, and successfully launches the coin at least 12 inches.

Developing

2 Points

The launcher is built but may be fragile or inconsistent; the coin launches but struggles to reach the 12-inch mark.

Beginning

1 Points

The launcher is incomplete or fails to launch the coin; the structure does not support the intended function.

Category 2

Scientific Testing & Mathematical Analysis

Focuses on the application of mathematical measurement and data analysis to test and improve the launcher's performance.

Criterion 1

Precision Measurement (Mathematics)

The ability to use tools (rulers/tape measures) to accurately determine and record the distance a projectile travels.

Exemplary

4 Points

Measurements are precise and recorded accurately in the log; student demonstrates mastery in using measurement tools independently.

Proficient

3 Points

All three launches are measured correctly using appropriate tools and recorded in the Distance Discovery Log.

Developing

2 Points

Measurements are attempted but may contain small errors; the log is partially filled or shows inconsistent units.

Beginning

1 Points

Measurements are missing or significantly inaccurate; student requires heavy support to use measuring tools.

Criterion 2

Data Representation & Iteration (Analysis)

The ability to represent trial results in a visual format and use that data to suggest improvements.

Exemplary

4 Points

Bar graph is perfectly organized with clear titles and scales; the reflection shows a sophisticated link between data trends and design changes.

Proficient

3 Points

Bar graph correctly represents 10 trials of hits vs. misses; student identifies one logical design change based on the data.

Developing

2 Points

Bar graph is attempted but has errors in counting or layout; the reflection is a simple observation rather than a plan for improvement.

Beginning

1 Points

Graph is missing or unreadable; no reflection on design improvement is provided.

Category 3

Creative Arts & Theme Integration

Evaluates the student's ability to balance form and function, using artistic elements to enhance the engineering project.

Criterion 1

Thematic Art Integration (Aesthetics)

The ability to integrate aesthetic elements and thematic storytelling into a functional engineering project.

Exemplary

4 Points

The launcher is a work of art that tells a story; decorations are elaborate and integrated perfectly without any impact on mechanical movement.

Proficient

3 Points

The launcher features clear St. Patrick's Day themes (colors, symbols) and a creative name that fits the project context.

Developing

2 Points

The launcher has some decoration, but it is minimal or slightly interferes with the mechanical parts.

Beginning

1 Points

The launcher has little to no decoration, or the decorations prevent the launcher from working.

Reflection Prompts

End-of-project reflection questions to get students to think about their learning

Question 1

How did your 'Master Plan' drawing help you build your real Lucky Launcher?

Text

Required

Question 2

If you could build your launcher one more time, what is one thing you would change to make it work even better?

Text

Required

Question 3

How hard was it to get the gold coin to land inside the Pot of Gold?

Scale

Required

Question 4

What happened to the gold coin when you used a bigger 'push' or more force on the launcher?

Multiple choice

Required

Options

The coin flew much farther.

The coin flew a shorter distance.

The coin didn't move at all.

Question 5

Look at your bar graph. Which column was the tallest for your launcher?

Multiple choice

Required

Options

I had more 'Hits' than 'Misses'.

I had more 'Misses' than 'Hits'.

I had the same amount of 'Hits' and 'Misses'.