Number theory courses can help you learn prime numbers, divisibility rules, modular arithmetic, and integer properties. You can build skills in problem-solving, logical reasoning, and algorithmic thinking, that support tackling complex mathematical challenges. Many courses introduce tools like Python for implementing algorithms and mathematical software for exploring number patterns, enabling you to apply your knowledge in practical situations such as cryptography and coding theory.

University of Maryland, College Park
Skills you'll gain: Data Storytelling, Strategic Communication, Stakeholder Engagement, Persuasive Communication, Communication Planning, Growth Mindedness, Emotional Intelligence, Conflict Management, Storytelling, Target Audience, Cultural Diversity, Information Management, Stakeholder Management, Team Management, Social Skills, Teamwork, Communication Strategies, Influencing, Communication, Virtual Teams
Beginner · Specialization · 3 - 6 Months

MedCerts
Skills you'll gain: Positive Behavior Support, Speech Therapy, Behavior Management, Autism Spectrum Disorders, Education and Training, Communication Strategies, Social Skills, Interpersonal Communications, Mental and Behavioral Health, Teaching, Communication, Learning Theory, Child Development, Classroom Management, Training Programs, Instructional Strategies, Developmental Disabilities, Proactivity, Data Collection, Learning Strategies
Beginner · Specialization · 1 - 3 Months

National Academy of Sports Medicine
Skills you'll gain: Nutrition Counseling, Nutrition and Diet, Nutritional Assessment, Nutrition Care Plans, Nutrition Education, Sports Medicine, Exercise Science, Coaching, Public Health and Disease Prevention
Beginner · Course · 1 - 4 Weeks

Universidad de Palermo
Skills you'll gain: Hospitality, Climate Change Adaptation, Market Dynamics, Digital Transformation, Hotels and Accommodations, Sustainable Development, Travel Arrangements, Food Services, Economic Development, Environment and Resource Management, Socioeconomics, Cultural Diversity, Culture, Consumer Behaviour, Supply And Demand
Beginner · Course · 1 - 4 Weeks

Advancing Women in Tech
Skills you'll gain: Software Architecture, Engineering Management, Goal Setting, Systems Design, Technical Management, Smart Goals, API Design, Technical Product Management, Cross-Functional Collaboration, Recruitment, Program Management, Team Performance Management, Technical Communication, Management Training And Development, Software Engineering, Microservices, Employee Coaching, Talent Management, Leadership and Management, Talent Acquisition
Beginner · Specialization · 1 - 3 Months

École Polytechnique Fédérale de Lausanne
Skills you'll gain: Supply And Demand, Property and Real Estate, Market Dynamics, Real Estate, Economic Development, Land Management, Economics, Market Analysis, Financial Market, Price Negotiation, Construction Estimating
Intermediate · Course · 1 - 3 Months

Kennesaw State University
Skills you'll gain: Six Sigma Methodology, Lean Six Sigma, Statistical Hypothesis Testing, Statistical Analysis, Analysis, Statistical Inference, Process Analysis, Correlation Analysis, Data Analysis, Probability & Statistics, Risk Analysis, Regression Analysis, Sample Size Determination, Sampling (Statistics)
Mixed · Course · 1 - 3 Months

University of Illinois Urbana-Champaign
Skills you'll gain: Organizational Leadership, Team Leadership, Leadership, Leadership and Management, Workplace inclusivity, Motivational Skills, Decision Making, Organizational Effectiveness, Teamwork, Strategic Decision-Making, Organizational Change, Diversity and Inclusion
Mixed · Course · 1 - 3 Months

Case Western Reserve University
Skills you'll gain: Coaching, Leadership Development, Initiative and Leadership, Leadership, Influencing, Strategic Leadership, People Development, Professional Development, Organizational Leadership, Leadership and Management, Team Leadership, Visionary, Emotional Intelligence, Personal Development, Goal Setting, Relationship Building
Mixed · Course · 1 - 4 Weeks

Kennesaw State University
Skills you'll gain: Statistical Process Controls, Lean Six Sigma, Six Sigma Methodology, Lean Manufacturing, Process Improvement, Process Capability, Quality Improvement, Continuous Improvement Process, Process Analysis, Variance Analysis, Facility Repair And Maintenance, Document Management, Training Programs
Mixed · Course · 1 - 3 Months

Pontificia Universidad Católica de Chile
Skills you'll gain: Data Visualization, Data Visualization Software, Data Presentation, Data Literacy, Human Factors, Color Theory, Design Elements And Principles, Graphing
Build toward a degree
Beginner · Course · 1 - 4 Weeks

Coursera
Skills you'll gain: TypeScript, Javascript, React.js, Debugging, Integrated Development Environments, Web Development Tools
Intermediate · Guided Project · Less Than 2 Hours