Student Book Required One hour lessons Learning Outcomes Specification Content Skills Covered Section Practicals CHAPTER 8 - Exchange with the Environment (11 hours) 1 Surface area to volume ratio Calculate surface area to 3.3.1 Surface area to volume ratio MS 0.3 Use ratios, fractions 8.1 volume ratio and percentages Students could be given the Describe the effects of The relationship between the size dimensions of simple cells with surface area to volume ratio of an organism or structure and its MS 2.1 Understand and use different shapes from which to on the rate of exchange for an surface area to volume ratio. the symbols: =, <, <<, >>, >, calculate the surface area to organism ∝,~ volume ratios of these cells, this Identify features that help Changes to body shape and the can be extended using assignment exchange in organisms development of systems in larger MS 2.2 Change the subject 1. Surface area to volume ratio can organisms as adaptations that of an equation be investigated using agar blocks facilitate exchange as this ratio containing indicator to determine reduces. MS 2.3 Substitute the effect of surface area to numerical values into volume ratio and concentration Students should be able to algebraic equations using gradient on the diffusion of an acid appreciate the relationship appropriate units for or alkali. between surface area to volume physical quantities ratio and metabolic rate. MS 2.4 Solve algebraic equations MS 4.1 Calculate the circumferences, surface areas and volumes of regular shapes PS 1.1 Solve problems set in practical contexts PS 3.2 Process and analyse data using appropriate mathematical skills as exemplified in the mathematical appendix for each science
One hour lessons Learning Outcomes Specification Content Skills Covered Student Book Section Required Practicals CHAPTER 8 - Exchange with the Environment (11 hours) 1 Surface area to volume ratio Students could be given the dimensions of simple cells with different shapes from which to calculate the surface area to volume ratios of these cells, this can be extended using assignment 1. Surface area to volume ratio can be investigated using agar blocks containing indicator to determine the effect of surface area to volume ratio and concentration gradient on the diffusion of an acid or alkali. Calculate surface area to volume ratio Describe the effects of surface area to volume ratio on the rate of exchange for an organism Identify features that help exchange in organisms 3.3.1 Surface area to volume ratio The relationship between the size of an organism or structure and its surface area to volume ratio. Changes to body shape and the development of systems in larger organisms as adaptations that facilitate exchange as this ratio reduces. Students should be able to appreciate the relationship between surface area to volume ratio and metabolic rate. MS 0.3 Use ratios, fractions and percentages MS 2.1 Understand and use the symbols: =, <, <<, >>, >, ∝,~ MS 2.2 Change the subject of an equation MS 2.3 Substitute numerical values into algebraic equations using appropriate units for physical quantities MS 2.4 Solve algebraic equations MS 4.1 Calculate the circumferences, surface areas and volumes of regular shapes PS 1.1 Solve problems set in practical contexts PS 3.2 Process and analyse data using appropriate mathematical skills as exemplified in the mathematical appendix for each science 8.1
Biology%20SoW%20Year%201.docx