Transcript 5-Min. Prep
DE Science Elementary “5-Minute Prep” For Plants Plants and Their Parts > Leaves Leaves – The Big Ideas • • • • Leaf cells have chlorophyll. Photosynthesis takes place in leaf cells. During photosynthesis, light energy, trapped by chlorophyll, is used to transform carbon dioxide and water into carbohydrates and oxygen. Veins in leaves allow water and nutrients to travel around the plant. Leaves – Prior Knowledge Students will have knowledge of plants prior to this study. It will help for students to use the Fun-damental, Getting to Know Plants. It will also help if they have: • Seen different kinds of plants and flowers. • Planted a seed. • Learned that plants have parts that serve different purposes. Leaves – Common Misconceptions • Leaves falling from trees indicates the trees are dead. When leaves appear, the trees are alive again in the spring. Reality: Trees are dormant in the winter and live off of food they have stored. Life processes continue, but at a very slow rate. In the spring, buds bring about new leaves. Leaves– Using DE Science Content When you close this presentation, you can review the following recommended resources for Leaves. • Reading Passage: Green Leaves, Red Leaves, Brown Leaves • eBooks: Leaves on Your Dinner Plate • Video Segment: Leaves Use the PowerPoint version of this presentation for hyperlinks to these resources or you can get to them through the browser or search feature. Leaves - Instructional Ideas • Read the passage, Green Leaves, Red Leaves, Brown Leaves. – Take a walk around your school and ask students to collect leaves. – Bring leaves into the classroom. – Provide students with magnifying glasses to observe the leaves. – Have students sort their leaves. – Ask students to explain how they chose to sort the leaves. – Discuss similarities and differences between leaves. Leaves - Instructional Activities • Watch the video segment, Leaves and Photosynthesis. – Create a classroom experiment by having students help to plant several plants. – Place some plants in a well lit space. – Place others in a dark space such as a closet. – Keep all other conditions the same for the plants. (water, soil, etc.) – Compare the plants on a daily basis. Record results on a chart posted in the classroom. – Discuss observations and make conclusions. State standards: If you wish to review your state standards regarding Leaves, click here to get to the curriculum standards search feature of DES. http://discoveryeducation.com/forward/curriculum.cfm You can click on any standard to see what resources are available to teach it. Additional Information: For additional content, check the Extend section within the concept.