1161 Where Do Plants Get Their Food? Resource Type: Instructional Resource -- Promising Practice Discipline: Science Ohio Standards Alignment: Grades 6–10 Professional Commentary: This promising practice lesson engages students in thinking about the historical development of the scientific method as well as photosynthesis. Students are asked to design an experiment that replicates van Helmont's and are then asked to improve upon the procedure by considering how light is involved in photosynthesis.... Resource Type: Instructional Resource -- Best Practice Discipline: Science Ohio Standards Alignment: Grades 9–12 Professional Commentary: This lesson facilitates student use of scientific inquiry and increases knowledge and understanding of biological control and predator-prey relationships in populations and ecological systems. Through activities, a research project and a real-life case study, students explore predators, prey and their relationships including using predators as a form of biological control.... 1163 Hazardous Chemicals in Your Neighborhood Resource Type: Instructional Resource -- Best Practice Discipline: Science Ohio Standards Alignment: Grades 9–12 Professional Commentary: This best practice lesson requires students to investigate hazardous chemicals, their sources and health effects. Students do this by researching and answering various questions on places that have had environmental damage done by hazardous chemicals.... Resource Type: Instructional Resource -- Promising Practice Discipline: Mathematics Ohio Standards Alignment: Grades 3–8 Professional Commentary: The Stomachion is an ancient tangram-type puzzle. Believed by some to have been created by Archimedes, it consists of 14 polygons (triangles, quadrilaterals, and pentagons) cut from a square.... 1165 As People Get Older, They Get Taller Resource Type: Instructional Resource -- Promising Practice Discipline: Mathematics Ohio Standards Alignment: Grades 2–5 Professional Commentary: In this two-lesson unit, students measure the heights of classmates in 2nd grade and, for comparison, classmates in 4th grade. They make a table showing heights to the nearest inch and ages to the nearest half-year.... 1166 Fibonacci Nim: Number Representations Resource Type: Instructional Resource -- Promising Practice Discipline: Mathematics Ohio Standards Alignment: Grades 9–12 Professional Commentary: This lesson reinforces understanding of place value by having students find numeral representations in bases other than 10. Students learn the repeated subtraction and repeated division methods for converting a decimal number N to a numeral in base b, provided b is an integer other than -1, 0, or 1.... Resource Type: Instructional Resource -- Promising Practice Discipline: Mathematics Ohio Standards Alignment: Grades 9–12 Professional Commentary: If you were standing on the top of Mount Everest, how far would you be able to see to the horizon? In this lesson, students will consider two different strategies for finding an answer to this question. The first strategy is algebraic—students use data about the distance to the horizon from various heights to generate a rule.... Resource Type: Instructional Resource -- Promising Practice Discipline: Mathematics Ohio Standards Alignment: Grades 8–11 Professional Commentary: In this lesson, students take on the role of villagers in a developing country trying to feed the village. While listening to the book One Grain of Rice read aloud, students work collaboratively to come up with a bargaining plan to trick the raja into feeding the village.... 1169 Paying for Your Wheels Resource Type: Instructional Resource -- Promising Practice Discipline: Mathematics Ohio Standards Alignment: Grades 9–12 Professional Commentary: This lesson will be most appealing to students who are learning to drive a car. In this lesson, students consider the costs of owning a car and ways to lessen those costs.... 1170 Perplexing Parallelograms Resource Type: Instructional Resource -- Best Practice Discipline: Mathematics Ohio Standards Alignment: Grades 8–12 Professional Commentary: A surprising result occurs when two line segments are drawn through a point on the diagonal of a parallelogram and parallel to the sides. From multiple instances of this construction, students can arrive at various conjectures.... |