Lesson Plan Michele Cook

Unit Title Surface Area and the Solar Cell

Grade Level : 10 Subject: Geometry

Standards Mathematics Standards History Standards Science and Technology

Standards Mathematics Standards 2.3. Measurement and Estimation a. Measure angles in degrees and determine relations of angles. b. Use scale measurements to interpret maps or drawings. c. Create and use scale models. d. Select and use appropriate units and tools to measure to the degree of accuracy required in particular measurement situations.

Standards Mathematics Standards 2.4. Mathematical Reasoning and Connections a. Use measurements and statistics to quantify issues (e.g., in family, consumer science situations). b. Demonstrate mathematical solutions to problems (e.g., in the physical sciences).

Standards Mathematics Standards 2.5. Mathematical Problem Solving and Communication a. Invent, select, use and justify the appropriate methods, materials and strategies to solve problems. b. Verify and interpret results using precise mathematical language, notation and representations, including numerical tables and equations, simple algebraic equations and formulas, charts, graphs and diagrams.

Standards Mathematics Standards 2.6. Statistics and Data Analysis a. Use scientific and graphing calculators and computer spreadsheets to organize and analyze data.

Standards History Standards 8.1 Historical Analysis and Skills Development a. Analyze and interpret historical sources. b. Data from maps, graphs and tables c. Analyze chronological thinking, data presented in time lines.

Standards Science and Technology –Unifying Themes 3.1 Describe concepts of models as a way to predict and understand science and technology Physical Science, Chemistry and Physics a. Analyze energy sources and transfers of heat. b. Use knowledge of chemical reactions to generate an electrical current Technology Education 3.8. Science, Technology and Human Endeavors

Unit Vocabulary area atom band gap blue print Dye sensitized solar cell electron nanoparticle Nanotechnology percent Photovoltaic solar cell (PV) proportion proton ratio scale drawing Solar Cell solar panel spreadsheet surface area ultraviolet light rays voltage watt wave length

NanoSolar Portfolio Include The Following Points Solar cell drawing 10 Blue Print of solar house 30 Spreadsheet with itemized cost 15 Solar energy time line 10 Solar cell lab data sheet 10 Solar public service announcement 25 Total 100

Materials CD Graph paper Solar Cell Lab Ruler

Technology Internet access Movie Maker scanner Spreadsheet

Handouts Spreadsheet fill in KWL Movie notes sheet

Web sites YouTube presentations History of solar panels Introduction to Solar Photovoltaics Nanotechnology and photovoltaics Dye-Sensitized Solar Cells : DigInfo

Web sites ** The Power of the Sun - The Science of the Silicon Solar Cell &NR=1http:// &NR=1 **Next Generation of Cheap Solar Cells feature=relatedhttp:// feature=related How It's Made - Solar Panels

Sites to buy solar cells Kits Nanocrystalline Solar Cell Kit

Additional Resources Solar Power Your Home for Dummies

WWW. ZAMZAR.COM YouToube file converter directions Go to youtoube.com and find a video. Go to Zamzar.com Choose URL (step 1) Copy url from YouToube (http address) Choose format(avi) (step2) Enter your address(step3) Convert(step 4) Check for file Download file (save file on flash drive,CD)

Formulas 1 w= 1 j = 1 kg*m 2 = 1 N*m s s 3 S Area of a rectangle = L * W

Unit objective The student will be able to understand the connection between surface area, the solar cell and nanotechnology

Nanotechnology How has nanotechnology increased the energy absorbed from the sun by the solar cell? nanoparticle nanotubes titanium oxide improving efficiency cheap solar cells How does nanotechnology lower the cost of manufacturing solar cells?

Lesson Objectives: The students will be able to answer basic questions about the process of turning light energy into electrical energy.

Student Background The students should have knowledge of the electron-proton-neutron model of the atom.

Student Background The students should have knowledge of how to determine the surface area of geometric shapes.

Methodology

KWL What I KNOW about solar cells What I WANT to Know about solar cells What I LEARNED about solar cells

Activity 1 – Introduction and Reading Passage The students will research the solar cell that was assigned.

Activity 1: Even Groups The student will draw an illustration of a solar cell (PV CELL) and explain how energy is produced.

Activity 1: Odd Groups The student will draw an illustration of a solar cell (Dye Sensitized CELL) and explain how energy is produced.

Homework The students will view the YouToube Video The Power of the Sun - The Science of the Silicon Solar Cell Next Generation of Cheap Solar Cells

Lesson Objective 2: Students will design a building that incorporates solar panels to produce energy. 1. The student will use graph paper to draw their Blue Print. 2. The student will use geometric shapes in the design of their building. 3. The student will give the total surface area of the design of their building. 4. The student will give the total surface area of the part of the building that is covered by the solar panels. 5.The student will give the ratio of the Total surface area of the building and the Total area covered by the solar panels. R = Total surface area of the building Total area covered by the solar cell

Home Assignment: 7. The student will give an itemized cost of the solar panels. This will be found by researching the internet. This information will be listed in a spread sheet. The spread sheet will include: Dimensions (area) of each solar panel, watts per solar panel, price per solar panel, state tax if any, total cost of all solar panels purchased.

Spreadsheet

Graph Paper

Geometric Shapes

Evaluation and Assessment Teacher will collect the students’ blueprints as an evaluation tool, looking at the following criteria

Rubric

NanoSolar Portfolio Include The Following Points Solar cell drawing 10 Blue Print of solar house 30 Spreadsheet with itemized cost 15 Solar energy time line 10 Solar cell lab data sheet 10 Solar public service announcement 25 Total 100

Conclusion This lesson plan can be adapted to fit the needs and resources available at you school.