Area of Composite Figures
Students will find the area of complex two-dimensional figures by decomposing them into simpler shapes.
Key Questions
- Analyze different strategies for decomposing complex shapes into simpler ones to find their area.
- Justify the choice of decomposition method for a given composite figure.
- Construct a composite figure and calculate its area using multiple methods.
Common Core State Standards
About This Topic
Public Health & Innovation examines the unique health challenges faced by African nations and the creative ways they are using technology to solve them. Students explore the impact of diseases like Malaria and Ebola on economic growth, and how mobile phone technology has revolutionized healthcare delivery in rural areas through 'm-health' apps. The unit also covers the role of international aid and the importance of local leadership in health crises.
This topic is a vital study of how human ingenuity can overcome geographic and economic barriers. It aligns with standards regarding the impact of health on human development and the role of technology in improving quality of life. Students grasp this concept faster through structured discussion and peer explanation as they analyze real-world case studies of health innovation.
Active Learning Ideas
Inquiry Circle: The M-Health Challenge
Groups are given a specific health problem (e.g., tracking a disease outbreak or reminding patients to take medicine). They must 'design' a simple mobile app or SMS-based system to solve it in a rural area with no internet.
Gallery Walk: Innovations in Health
Display posters of various African-led health innovations (e.g., drone delivery of blood, low-cost water filters, or community health workers). Students rotate to identify how each innovation addresses a specific geographic barrier.
Think-Pair-Share: The Link Between Health and Wealth
Students discuss how a healthy population helps a country's economy (more workers, fewer hospital costs). They share with a partner why investing in health might be the best way to help a nation grow.
Watch Out for These Misconceptions
Common MisconceptionAfrican nations only rely on Western aid for health.
What to Teach Instead
Many of the most effective health solutions are developed and led by African scientists and community leaders. The 'Innovations in Health' gallery walk is essential for highlighting local agency and expertise.
Common MisconceptionDiseases in Africa don't affect the rest of the world.
What to Teach Instead
In a globalized world, health crises can spread quickly across borders. Peer discussion about the Ebola or COVID-19 pandemics helps students understand the importance of global health cooperation.
Suggested Methodologies
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Frequently Asked Questions
What is 'm-health'?
How do drones help with healthcare in Africa?
Why is malaria such a big challenge in Africa?
How can active learning help students understand public health?
Planning templates for Mathematics
5E Model
The 5E Model structures lessons through five phases (Engage, Explore, Explain, Elaborate, and Evaluate), guiding students from curiosity to deep understanding through inquiry-based learning.
unit plannerMath Unit
Plan a multi-week math unit with conceptual coherence: from building number sense and procedural fluency to applying skills in context and developing mathematical reasoning across a connected sequence of lessons.
rubricMath Rubric
Build a math rubric that assesses problem-solving, mathematical reasoning, and communication alongside procedural accuracy, giving students feedback on how they think, not just whether they got the right answer.
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