Motion Masters Slides THE ART OF MOVEMENT
A Deep Dive into Alexander Calder's Mobiles
Art History
Physics
Creativity
The Living Sculpture
"Why must art be static? You look at a painting... you see a frozen moment. A statue... it stands still forever."
The Big Question:
How does art change when it refuses to sit still?
[Visual: Comparison of a Greek Statue vs. a Calder Mobile]
ALEXANDER CALDER
The "Engineer" Artist
Mechanical Engineer
He studied engineering before art. He understood levers and balances.
The Abstract
He loved primary colors (red, yellow, blue) and simple shapes.
"Mobiles" vs. "Stables"
Mobiles: Kinetic sculptures that hang and move.Stables: Static sculptures that sit on the ground.
Anatomy of a Mobile
1
The Elements
The "weights." These are the shapes that catch the wind and provide the visual interest.
2
The Connectors
The "arms." Usually wire, these define the reach and path of movement.
3
The Fulcrum
The balance point. This is where the magic (and the physics) happens.
[Diagram: A simple 2-tier mobile labeled with these parts]
Case Study: Cascading Flowers
[Visual: Image of a complex multi-tier Calder mobile]
Observation Challenge:
How many levels (tiers) of balance do you see?
Where is the heaviest shape located? Why?
What shapes do the "connectors" make in space?
Calder Case Study Worksheet Calder Case Study
Visual Analysis Worksheet
Student:
Date:
1
The Kinetic Dictionary
KINETIC ART
Art that contains movement perceivable by the viewer or depends on motion for its effect.
MOBILE
A type of kinetic sculpture the pieces of which are moved by motors or air currents.
BIOMORPHIC SHAPES
In your own words, define "Biomorphic" based on the prefix "Bio-" (life) and "-Morph" (form):
2
Anatomy of a Masterpiece
Observe the diagram of the Calder-style mobile below. Label the three core components: Element , Connector (Arm) , and Fulcrum (Balance Point) .
A B C
A (Fulcrum): Where does this point connect?
B (Element): How would weight here affect C?
C (Connector): Why is this length important?
3
Critique & Connection
Compare a traditional "Stable" sculpture (like a bronze statue) to a "Mobile." What is one advantage of each form?
Alexander Calder once said, "Just as one can compose colors, or forms, so one can compose motions." What do you think he meant by "composing motion"?
Looking ahead: Which part of building a moving sculpture do you think will be the most difficult—the design, the cutting, or the balancing? Why?
Gravity Games Slides GRAVITY GAMES
The Science of Perfect Balance
The Secret of Levers
Module 2.1
A mobile is just a series of First-Class Levers .
The Rule of Thumb:
"The heavier the weight, the closer it must be to the fulcrum to stay balanced."
Think of a seesaw: where does a heavy adult sit compared to a small child?
FULCRUM
Off-Center Balance
Finding the Center of Gravity
The Point
The "average" location of all the weight in an object.
Irregular Shapes
In blobs or weird shapes, the center isn't always the visual middle!
Counterweights
Adding weight to one side shifts the center toward that weight.
Lab Mission: The Single Point
Today's Challenges:
1
Find the balance point of a perfect circle. (Easy!)
2
Find the balance point of an L-shape. (Harder!)
3
Balance a large light shape using a small heavy counterweight.
Pro Tip: The Plumb Line Method
[Diagram: An irregular shape hanging from a pin with a weighted string showing how to find the center of gravity]
STEP 1: Hang your shape from a single point (use a pin or needle).
STEP 2: Let it settle. The center of gravity will be directly below the pin.
STEP 3: Draw a vertical line down. Repeat from a different point.
Where the lines cross is your center!
Balance Lab Report Worksheet Balance Lab Report
Inquiry & Physics Experiment
STN:
DATE:
Part 1: The Prediction
If you have a 10-inch wire with a 50g weight on the left and a 10g weight on the right, where do you think the fulcrum (balance point) should be placed?
50g
10g
0"
2.5"
5"
7.5"
10"
Mark your prediction with an 'X' on the line above and explain why:
Part 2: Irregular Balance Points
Using the "Plumb Line" method or finger-testing, find the center of gravity for three different cardboard shapes. Sketch the shapes below and mark the center with a ★.
Shape A: Triangle
Shape B: "L" Shape
Shape C: Random Blob
Part 3: Testing the Leverage
Test Setup Distance to Left Weight Distance to Right Weight Observations Equal Weights (10g / 10g) Unequal Weights (20g / 5g) Extreme Unequal (50g / 5g)
Part 4: The Discovery
The "Law of the Lever" states that Weight × Distance on one side must equal Weight × Distance on the other. Did your data support this? Explain.
How will this experiment help you when you start building your hanging mobile tomorrow?
Biomorphic Blueprints Worksheet Biomorphic Blueprints
Form & Design Guide
LESSON 3
What is Biomorphic?
Biomorphic shapes are based on organic forms found in nature—leaves, cells, puddles, or bones. Unlike geometric shapes (circles, squares), biomorphic shapes are irregular and fluid.
Design for 360°
Your mobile will spin! A good kinetic shape looks interesting from the front, the side, and even from below. Avoid shapes that are only "one-way."
Shape Inspiration
Irregular is better. Fluid is kinetic.
Rough Sketches
DRAW 5 POTENTIAL SHAPES
!
The Final Cut
Choose your best shape and draw it large below. Remember: this will be cut out and hanging. Think about where the hole for the wire will go!
Drawing Space: 1:1 Scale
Element ID: Tier 1 / Tier 2 / Tier 3
Design Final Checklist
Is the shape irregular/biomorphic?
Are there any sharp points that might catch on wires?
Is there enough "meat" in the shape to punch a hole?
Does it look good if viewed from 45 degrees?
Tier Tactics Checklist Worksheet Tier Tactics
Assembly & Balance Protocol
Rule #1
Build from the Bottom UP!
Why?
Every time you add a level, the entire lower section becomes a "single weight" for the next tier up. If you start from the top, you'll be chasing your balance forever.
01 Assembly Checklist
Assemble Tier 1 (The Bottom)
Connect your two lowest shapes to the first wire. Find the balance point of that wire by sliding your finger or a loop of string.
Lock the Point
Once balanced, use a tiny drop of glue or a crimp to ensure the connection point doesn't slide.
Connect to Tier 2
The balance point of Tier 1 now hangs from one end of the next wire. Put a shape on the other end. Re-balance.
Iteration Test
Blow gently on the shapes. Do they hit each other? If yes, you need longer wires or smaller shapes!
Troubleshooting the Wobble
Problem: It leans too much
"No matter where I put the loop, one side always crashes down."
The Fix:
You likely have a weight discrepancy that is too extreme for your wire length. Move the heavy weight closer to the center or lengthen the wire on the light side.
Problem: The Collision
"The shapes spin and hit each other."
The Fix:
Increase the vertical distance between tiers. Use a longer vertical string or wire connecting the balance points of each level.
Log: Tier Progress
Tier 1 (Base)
Tier 2 (Mid)
Tier 3 (Top)
Airborne Reflections Worksheet Post-Installation Reflect
Invisible Forces
Unit Reflection // 8th Grade Art
A
Field Observations
Watch your mobile for 2 minutes as the air moves through the room. Describe its behavior.
Movement Pattern
Does it spin, rock, sway, or jerk? Is the movement fast or slow?
Air Current Interaction
What happens when someone walks by? How does the "invisible" become "visible"?
?
Temporal Art & Time
Definition: Temporal Art is art that involves time. Unlike a painting that stays the same, your sculpture is never the same from one second to the next.
Reflection Question:
Do you think a sculpture that moves is more "alive" than one that stays still? Why or why not?
The Environment Factor:
How does the space (the ceiling, the vents, the people) become part of your artwork?
C
Final Synthesis
"To be an artist, you must also be an engineer."
List 3 specific physics principles you used to make your art successful:
If you could build this again with a motor instead of air currents, how would it change the "vibe" of the sculpture?
End of Sequence // Kinetic Sculpture
Kinetic Masterpiece Rubric Teacher Resource Kinetic Rubric
Final Assessment: Balance in Motion
Total Score
/ 100
Criteria Exemplary (25) Proficient (20) Developing (15) Beginning (10)
Physics & Balance
Stability, horizontal alignment, and center of gravity.
| Tiers are perfectly balanced; wires are straight; sculpture is stable in motion. | Most tiers are balanced; slight leaning; functional but imperfect. | Significant leaning; some tiers fail to balance; restricted motion. | Fails to balance; collapses or hangs vertically without separation. |
|
Biomorphic Design
Fluidity of forms and 360-degree visual interest.
| Highly creative organic forms; looks visually striking from all angles. | Consistent biomorphic style; good 3D interest across most elements. | Simple shapes; limited organic variation; some flat perspectives. | Basic geometric shapes only; lacks visual interest or 3D thought. |
|
Technical Skill
Craftsmanship, wire work, and tiered construction.
| Precise wire loops; clean cuts; no collisions between elements. | Solid construction; few messy loops; elements rarely collide. | Visible glue/tape; loose wires; elements frequently collide. | Flimsy construction; wire is bent/messy; construction is failing. |
|
Artistic Insight
Application of concepts like temporal art and invisible forces.
| Profound reflection; clear connection between physics and art theory. | Clear understanding of movement concepts and art history. | Basic reflection; understands that it moves but lacks depth. | Minimal reflection; no mention of physics or temporal art. |
Glows: Areas of Strength
Grows: Opportunities for Improvement
Assessor Signature
Balance in Motion // Kinetic Assessment Sheet
