Materials: Foods samples to classify (candy, yogurt, pasta, honey, ketchup, mustard), Discovery science tech book, laptops, internet access, access to online presentation tools, and lab materials.

Engage: To activate prior knowledge, students will classify a group of food as either plant or animal. They will then discuss the classifications with a partner and answer the following questions together: What kinds of foods come from plants?, Do all foods come from either plants or animals?, Are all types of plants edible?, What parts of a plant are edible?, and What do plants eat?. Answers will be discussed as a whole class guided by the teacher. Students will then read the 'Engage' section of the Discovery Science Techbook (biology) on photosynthesis and answer the essential question: How does photosynthesis work? and How are photosynthesis and cellular respiration related? (adapted from the photosynthesis lesson model in the Discovery Tech book for biology) Evaluate: Students will be evaluated informally for completing the assignment demonstrating critical thinking about the content. Areas of need will be identified based on answers to questions.

Explore: Students will read the 'The photosynthesis reaction' passage in first section of the 'Explore' section of the Discovery Science Techbook (biology) on photosynthesis. Students will then participate in the Techbook labs that simulate photosynthesis and look at the affect of light wavelength on photosynthesis. They will answer the analysis and conclusion questions in both labs and create a presentation of the lab results using a Web 2.0 tool, like picsviewr. Students will then read the other heading sections in the first section. Students will create a Venn diagram, using 'Creately', showing the differences and similarities between photosynthesis and cellular respiration. Evaluate: Students will critique each other's Venn diagram and presentations after uploading them to the class wikispace.

Explain: Students will revisit answers to essential questions and make revisions. Students will use the web based tool 'Creately' to make a diagram of the relationship between photosynthesis and cellular respiration accompanied by labels and text summaries. Evaluate: Students will critique revised answers and diagrams uploaded into the wikispace.

Elaborate: Students will read and watch videos in the 'Applying photosynthesis' section in the Elaborate with STEM section of the Discovery science Techbook on photosynthesis (biology). They will complete the 'Removing Atmospheric Carbon Dioxide' activity by creating a presentation with, adobe spark video or another approved tool. Students are scientists working at JCAP (Joint Center for Artificial Photosynthesis) and will present an argument recommend or not recommend financing for projects to design a generator to make electricity using artificial photosynthesis and alternate biofuels. Evaluate: Classmates will critique presentations after uploading to wikispace.

Evaluation: Students will take a summative end of lesson test.


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