Introduction to Animation: Principles of Motion

Animation principles come alive when students move their own hands and eyes. The hands-on work of flipping pages, timing frames, and drawing key poses lets middle schoolers feel the difference between mechanical and expressive motion in their bodies before they see it on screen.

• 7th Grade
• Visual & Performing Arts
• 4 activities
• 20 min–50 min

Learning Objectives

1. Explain how the principle of 'squash and stretch' enhances the illusion of weight and flexibility in animation.
2. Construct a short animated sequence demonstrating anticipation and follow-through.
3. Analyze how timing and spacing affect the perceived speed and impact of animated movements.
4. Compare the visual impact of animation using and not using squash and stretch.
5. Design a simple animation sequence incorporating at least two core animation principles.

Simulation Game

⏱ 40 min·Pairs

Hands-On Workshop: Squash and Stretch Flipbook

Students create a simple flipbook showing a ball dropping and bouncing, applying squash (flatten the circle at the moment of impact) and stretch (elongate the circle as it moves through the air at peak speed). Pairs compare flipbooks and assess whether the squash-and-stretch reads convincingly at different bounce heights.

Prepare & details

Explain how the principle of 'squash and stretch' enhances the illusion of weight and flexibility in animation.

Facilitation Tip: During the Squash and Stretch Flipbook, have students first draw a simple 5-frame bounce using equal spacing, then immediately flip it to confirm the robotic look before revising the spacing to slow in and slow out.

Setup: Flexible space for group stations

Materials: Role cards with goals/resources, Game currency or tokens, Round tracker

• Apply
• Analyze
• Evaluate
• Create
• Social Awareness
• Decision-Making

Inquiry Circle

⏱ 25 min·Small Groups

Inquiry Circle: Timing Analysis

Show two versions of the same action animated at different timings: one at 6 frames and one at 24 frames over the same number of poses. In small groups, students describe the difference in what each action communicates (hurried vs. deliberate, light vs. heavy) and identify which timing choice would fit different storytelling contexts.

Prepare & details

Construct a short animated sequence demonstrating anticipation and follow-through.

Setup: Groups at tables with access to source materials

Materials: Source material collection, Inquiry cycle worksheet, Question generation protocol, Findings presentation template

• Analyze
• Evaluate
• Create
• Self-Management
• Self-Awareness

Think-Pair-Share

⏱ 20 min·Pairs

Think-Pair-Share: Anticipation Hunt

Show a 2-minute clip from an animated film and ask students to write down every moment they spot an anticipation pose: the backward windup before a jump, the raised eyebrow before a reaction. Students compare lists with a partner, then discuss what each action would feel like without the anticipation preceding it.

Prepare & details

Analyze how timing and spacing affect the perceived speed and impact of animated movements.

Setup: Standard classroom seating; students turn to a neighbor

Materials: Discussion prompt (projected or printed), Optional: recording sheet for pairs

• Understand
• Apply
• Analyze
• Self-Awareness
• Relationship Skills

Simulation Game

⏱ 50 min·Individual

Design Challenge: Animated Sequence

Using a digital tool (Canva, Flipaclip, or physical paper if devices are unavailable), students create a short 8 to 12 frame sequence demonstrating one animation principle of their choice. They label their frames with the principle at work and present their sequence to a small group, explaining specific timing and spacing decisions.

Prepare & details

Explain how the principle of 'squash and stretch' enhances the illusion of weight and flexibility in animation.

Setup: Flexible space for group stations

Materials: Role cards with goals/resources, Game currency or tokens, Round tracker

• Apply
• Analyze
• Evaluate
• Create
• Social Awareness
• Decision-Making

Teaching This Topic

Start with physical movement. Ask students to stand and mimic a bouncing ball by crouching low for the squash and rising high for the stretch. This kinesthetic anchor helps them internalize the principles before translating them to paper. Avoid teaching abstract formulas; instead, frame each principle as a performer’s choice about weight, energy, and character intention. Research shows that students grasp motion best when they experience it in their own bodies first, then apply that understanding to visual sequences.

What to Expect

Successful learning looks like students applying timing, spacing, and anticipation intentionally in their drawings rather than copying shapes. You will see deliberate choices about frame spacing, character preparation, and weight shifts that make motion feel alive.

Watch Out for These Misconceptions

Common Misconception

During the Squash and Stretch Flipbook, students often assume equal spacing between frames creates smooth motion.

What to Teach Instead

Show students how to space their first flipbook evenly, then flip it to reveal the robotic motion. Guide them to adjust spacing by clustering frames near the top and bottom of the bounce to create slow-in and slow-out timing.

Common Misconception

During the Animated Sequence activity, students may think animation is just repeating the same drawing with minor changes.

What to Teach Instead

Have students isolate the key poses in their sequence and compare them to the full set of in-between frames. Ask them to describe how the character’s posture, eyes, and weight shift in each drawing to communicate intention.

Assessment Ideas

Peer Assessment

After the Squash and Stretch Flipbook, partners review each other’s 5-frame flipbooks and answer: Does the ball squash on impact? Does it stretch on the way up? Are the drawings spaced to show acceleration and deceleration?

Exit Ticket

During the Animated Sequence activity, students draw two simple 3-frame sequences for a character jumping over an obstacle. One sequence shows anticipation before the jump, and the other shows follow-through after landing. Students label which principle is demonstrated in each.

Quick Check

After the Timing Analysis activity, present short animated clips and ask students to identify which principles (squash/stretch, anticipation, timing, spacing, follow-through) are most evident. They explain their reasoning in one sentence for each identified principle.

Extensions & Scaffolding

• Challenge students who finish early to create a 10-frame flipbook that combines squash and stretch with anticipation before the bounce.
• For students who struggle, provide printed templates with three faint key poses (top, middle, bottom) so they focus only on spacing and in-between frames.
• Deeper exploration: Introduce slow-motion video of real-world bounces or athletic jumps. Ask students to analyze how timing and spacing differ from their initial flipbooks.

Key Vocabulary

Squash and Stretch	An animation principle that gives a sense of weight, flexibility, and volume to objects. It involves deforming an object to emphasize its mass and movement.
Anticipation	A principle where a character or object prepares for an action, like winding up before a throw or bending knees before a jump. This signals the upcoming movement to the viewer.
Timing	The number of frames used for an action, which controls the perceived speed. Fewer frames mean faster movement, more frames mean slower movement.
Spacing	The distance between successive drawings or frames. Closer spacing creates slow, smooth motion, while wider spacing creates fast, abrupt motion.
Follow-through	A principle where parts of the body or attached objects continue to move after the main body has stopped, adding realism and fluidity to motion.