Introduction
Have you walked along the shore and noticed the sea rise and fall? Sometimes the water creeps far up the beach; other times it pulls back, revealing sand and rocks. This daily change is the tide — one of nature’s most steady rhythms. But what causes it? Why does it change? And why does it matter to us who live near the sea?
In this WebQuest, you’ll become coastal science investigators — discovering how the Moon, Sun, and Earth work together to move our oceans. Let’s explore! 🌍🌙
Task
Your team will create a 2-part presentation (poster, slide deck, or infographic) that:
- Explains what causes tides and the roles of the Moon and Sun
- Compares high/low tides and spring/neap tides
- Shows real tide patterns in your local area (e.g., Davao Gulf)
- Shares one way tides affect people’s lives (fishing, transport, safety, or tourism)
You will present your findings to the class.
Process
Follow these steps:
Step 1 — Learn the Basics
- Watch the video & read the articles to understand how Earth, Moon, and Sun create tides
- Discuss: Does the Moon pull harder than the Sun? Why?
Step 2 — Identify the Types
- Create a simple chart: High Tide vs Low Tide | Spring Tide vs Neap Tide
- Draw or find a diagram showing positions during each tide type
Step 3 — Check Our Local Tides
- Look up today’s tide times for Davao or your nearest coastal city
- Note: When is high tide? Low tide? How much difference is there?
Step 4 — Connect to Daily Life
- Interview or research: How do fishermen, boat operators, or coastal communities plan around tides?
- Choose one example to share
Step 5 — Put It All Together
- Organize your facts, diagrams, and local findings
- Add clear labels and simple explanations
- Practice presenting as a team
Evaluation
Table
Criteria Excellent (4) Good (3) Developing (2) Beginning (1)
Science Concepts Clearly explains causes & all 4 tide types Explains most concepts Some ideas unclear Facts missing or incorrect
Local Connection Includes real data + 1 strong example Includes data or example only General info only No local connection
Presentation Organized, labeled, easy to follow Mostly organized Hard to follow Disorganized
Teamwork All contribute equally Most participate Few lead One person did the work
Reflection Shares what was learned & why it matters Shares what was learned Brief statement No reflection
Total Score: ____ / 20
Conclusion
Great work, investigators! 🎉
You’ve discovered that tides aren’t just water moving — they’re a dance between Earth, Moon, and Sun that happens every single day. You’ve also seen how this cosmic rhythm shapes our local shores and the lives of people here.
Reflect & Write:
- What surprised you most about tides?
- How might understanding tides help you or your family in the future?
- What is one question you still want to answer?
Credits
- Content Sources: NASA, NOAA, DepEd Commons, Tide-Forecast.com
- Images: Wikimedia Commons (public domain diagrams)
- WebQuest Framework: Based on Bernie Dodge’s WebQuest model — createwebquest.com
- Inspiration: Grade 8 Science — Earth and Space, K–12 Philippine Curriculum
- Developed by: [Your Full Name]
- Course: Technology for Teaching and Learning
Teacher Page
📌 Subject & Grade
- Subject: Science
- Grade Level: 8
- Topic: Ocean Tides — Causes, Types, and Human Impact
- Time Required: 2–3 class periods (45–60 mins each)
📌 Learning Objectives (Aligned)
- Identify gravitational forces that cause tides
- Distinguish among high/low, spring, and neap tides
- Locate & interpret real local tide data
- Relate natural phenomena to community life
- Collaborate to research, organize, and present findings
📌 Pedagogical Approach
- Inquiry-Based Learning → students discover rather than just receive information
- Constructivist → build understanding from multiple sources
- Collaborative → small teams promote discussion & shared responsibility
- Contextualized → local data makes science relevant to daily life
📌 Preparation Notes
- Preview all links beforehand
- Provide printed guides if internet access is limited
- Group students heterogeneously (mixed strengths)
- Assign roles within teams: Researcher, Data Collector, Designer, Reporter
📌 Differentiation
- Support: Provide partially completed diagrams; pre-selected short videos
- Challenge: Ask advanced students to research why tide times change daily
- Inclusive: Allow options for final output — poster, slide deck, video, or oral report
📌 Standards Alignment
- DepEd K–12 Science 8 — Earth and Space: “The relationship between the Earth, Moon, and the Sun”
- 21st-Century Skills: Information literacy, critical thinking, communication, collaboration
📌 Assessment
- Use the Evaluation Rubric above
- Formative: Observe team discussions & process work
- Summative: Final presentation + written reflection