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Public Speaking and Diction Course
More than 2 million students worldwide

Public Speaking and Diction Course

4.4

Whether you're presenting to a boardroom, leading a team meeting, or speaking in public for the first time, this course gives you the tools to communicate with clarity, authority, and confidence. You'll master breath control, diction, persuasion, and stage presence from the ground up. Stop dreading the spotlight — start owning it.

Dedika for businesses

What you will learn:

This course covers every dimension of effective public speaking, from diagnosing your current skill level to delivering high-stakes keynotes and media appearances. You will develop diaphragmatic breathing, precise articulation, and prosodic control so your voice commands attention in any room. You will learn how to structure speeches using proven frameworks, craft powerful openings and calls to action, and use nonverbal communication to reinforce your message. Advanced modules cover rhetorical devices, persuasion techniques, impromptu speaking, and cross-cultural communication. By the end, you will have a personalized practice plan to keep improving long after the final lesson.

How you study in practice Public Speaking and Diction Course

How you practice Public Speaking and Diction Course

For companies that want to train their team

With Dedika for Business, the course includes exercises and examples tailored to your own business and the way your company needs.

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Course content

8 Chapters • 38 LessonsDuration between 4 and 360 hours (you decide)

Chapter 1See details

Foundations of Public Speaking

  • Lesson 1 • What Public Speaking Really Is

    Defines public speaking beyond formal speeches to include all audience-directed communication. Establishes the scope that frames every subsequent chapter.

  • Lesson 2 • Diagnosing Your Current Speaking Level

    Uses structured self-recording and rubric-based review to establish a personal baseline. Honest self-diagnosis prevents skipping foundational steps.

  • Lesson 3 • The Psychology of Stage Fright

    Explains the physiological and cognitive roots of speaking anxiety and reframes nervousness as energy. Provides immediate coping tools used throughout the course.

  • Lesson 4 • Audience Awareness Fundamentals

    Introduces audience analysis as the core driver of every speaking decision. Connects listener needs to speaker choices made in all later chapters.

Chapter 2See details

Breath Control and Vocal Power

  • Lesson 1 • Vocal Warm-Up Routines

    Provides a repeatable pre-speech warm-up sequence protecting vocal health. Students integrate warm-ups as a professional habit before any speaking event.

  • Lesson 2 • Projection Without Shouting

    Teaches forward resonance and supported airflow to fill a room naturally. Distinguishes healthy projection from volume-based strain.

  • Lesson 3 • Diaphragmatic Breathing Technique

    Trains belly-led breathing to replace shallow chest breathing under pressure. This technique underpins every vocal exercise in the chapter.

  • Lesson 4 • Anatomy of the Speaking Voice

    Maps the respiratory and phonatory systems relevant to speech production. Understanding mechanics prevents harmful habits introduced later in practice.

Chapter 3See details

Diction, Articulation, and Clarity

  • Lesson 1 • Connected Speech and Word Boundaries

    Addresses linking, elision, and assimilation patterns that blur word boundaries in fast speech. Students balance natural flow with intelligibility.

  • Lesson 2 • Articulators and Their Functions

    Identifies lips, tongue, teeth, and palate as the tools of articulation. Knowing each articulator's role targets practice efficiently in later sections.

  • Lesson 3 • Accent Neutralization Principles

    Introduces targeted modification of accent features that impede comprehension without erasing speaker identity. Applies directly to professional and cross-cultural contexts.

  • Lesson 4 • Consonant Precision Drills

    Isolates high-frequency problem consonants through minimal-pair and tongue-twister exercises. Precision here directly reduces listener effort in all speaking contexts.

  • Lesson 5 • Vowel Consistency and Placement

    Standardizes vowel production to reduce regional accent interference with comprehension. Consistent vowels anchor the listener's decoding of connected speech.

Chapter 4See details

Prosody: Pace, Pitch, and Pause

  • Lesson 1 • Stress and Emphasis Patterns

    Teaches word-level and sentence-level stress to highlight meaning and contrast. Stress choices directly shape what audiences remember from a speech.

  • Lesson 2 • Controlling Speaking Rate

    Trains deliberate rate variation to signal importance and aid processing. Connects rate control to the pause work introduced in the next section.

  • Lesson 3 • Pitch Range and Inflection

    Expands usable pitch range and trains upward and downward inflection for meaning and authority. Prevents uptalk and flat endings that undermine credibility.

  • Lesson 4 • Strategic Use of Pause

    Reframes silence as a rhetorical tool rather than a gap to fill. Pause placement reinforces key points and replaces filler words practiced in Chapter 1.

  • Lesson 5 • Understanding Prosody and Its Impact

    Defines prosody as the music of speech and links each element to listener comprehension and engagement. Frames the chapter's practical exercises.

Chapter 5See details

Speech Structure and Scripting

  • Lesson 1 • Building the Body of a Speech

    Develops main points with evidence, transitions, and internal summaries for retention. Logical body construction supports the prosodic emphasis trained in Chapter 4.

  • Lesson 2 • Scripting vs. Outlining Decisions

    Compares full scripts, keyword outlines, and mind maps for different speaking contexts. Students select the format that best supports their delivery style.

  • Lesson 3 • Crafting Powerful Openings

    Trains hook techniques that capture attention in the first thirty seconds. Strong openings leverage the audience analysis skills from Chapter 1.

  • Lesson 4 • Memorable Conclusions and Calls to Action

    Designs closings that reinforce the central message and motivate audience response. Effective conclusions mirror the opening hook for structural symmetry.

  • Lesson 5 • Core Structural Frameworks

    Presents problem-solution, chronological, and topical frameworks as reusable templates. Choosing the right structure is the first scripting decision students make.

Chapter 6See details

Nonverbal Communication and Stage Presence

  • Lesson 1 • Posture and Physical Grounding

    Establishes a neutral, open stance as the default speaking position. Grounded posture signals confidence and supports the diaphragmatic breathing from Chapter 2.

  • Lesson 2 • Purposeful Gesture and Hand Use

    Trains gestures that reinforce verbal content rather than distract from it. Purposeful gesture amplifies the emphasis patterns developed in Chapter 4.

  • Lesson 3 • Movement and Use of Space

    Teaches intentional movement to transition between points and engage different audience sections. Purposeless pacing is replaced with motivated stage movement.

  • Lesson 4 • Facial Expression and Emotional Congruence

    Aligns facial expression with speech content to reinforce authenticity and trust. Incongruent expressions undermine the credibility built through vocal and structural work.

  • Lesson 5 • Eye Contact as Connection Tool

    Develops sustained, distributed eye contact that creates individual connection across a group. Replaces scanning and ceiling-gazing with intentional engagement.

Chapter 7See details

Delivery Modes and Adaptive Speaking

  • Lesson 1 • Extemporaneous Speaking Mastery

    Develops the preparation-to-delivery workflow for extemporaneous speaking as the professional default. Integrates outlining skills from Chapter 5 with prosodic control from Chapter 4.

  • Lesson 2 • Impromptu Speaking Frameworks

    Trains structured response frameworks for unplanned speaking moments. Reduces panic by providing instant organizational scaffolding.

  • Lesson 3 • Adapting Delivery to Context

    Applies delivery adjustments for room size, formality level, and audience energy. Connects audience analysis from Chapter 1 to real-time delivery decisions.

  • Lesson 4 • Handling Disruptions and Mistakes

    Prepares speakers to recover from technical failures, audience interruptions, and personal errors without losing composure. Resilience is practiced through simulation.

  • Lesson 5 • Four Delivery Modes Compared

    Defines and demonstrates memorized, manuscript, extemporaneous, and impromptu modes with context-specific trade-offs. Provides the decision framework used throughout the chapter.

Chapter 8See details

Advanced Rhetoric and Persuasion

  • Lesson 1 • Storytelling as Persuasion

    Frames narrative structure as the most powerful persuasive vehicle available to speakers. Integrates story hooks from Chapter 5 into full persuasive arcs.

  • Lesson 2 • High-Stakes Speaking Scenarios

    Applies all rhetorical tools to board presentations, crisis communications, and keynote addresses. Synthesizes every prior chapter into integrated performance under pressure.

  • Lesson 3 • Handling Objections and Counterarguments

    Trains proactive acknowledgment and rebuttal of opposing views to strengthen persuasive positions. Demonstrates intellectual honesty that reinforces ethos.

  • Lesson 4 • Rhetorical Devices for Impact

    Introduces anaphora, tricolon, antithesis, and metaphor as tools for memorability and persuasion. Each device is practiced in original speech segments.

  • Lesson 5 • Ethos, Pathos, and Logos in Practice

    Operationalizes Aristotle's three appeals as concrete speech design choices. Builds on credibility concepts from Chapter 1 and structure from Chapter 5.

Certification

Your valid completion certificate

This course is for you:

  • Managers: need to motivate teams and run meetings that actually land.

  • Job seekers: want to interview with confidence and leave a lasting impression.

  • Entrepreneurs: must pitch ideas persuasively to investors, clients, and partners.

  • Educators: aim to hold a room's attention and communicate lessons more clearly.

  • Healthcare professionals need to explain complex information to patients with clarity.

  • Community advocates: want their message to move audiences and inspire real action.

What our students say

Your classes are perfect. I purchased the one-year package and finally have the opportunity to follow various topics of my interest without needing to switch platforms... I thank you for everything you do, I've already recommended you to other people...
Giulio Carlo
Giulio CarloDigital Marketing Student
I like how the lessons are straight to the point and how I can switch chapters and skip content I don't need.
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Mariana FerresPhotography Student
I like the content and the presentation style and video transcription, which speeds up the process!
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Luciana AlvarengaNail Design Student
The platform is fast, simple to use. The diversity of content and complementary videos really help with learning.
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André FelipePrompt Engineering Student

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