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ICTSL-hrs-HLIB criteria6&5=A, 4=B; 3=C, 2=D, 1=F, 0=0Students missing
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no.DatePracticalTopic128.533DDCPCEMSCommentslab
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1Aug 23, 2011Using Logger Pro "Photo Analysis" to measure dimensions of cell structures in micrographs.2.31; 511√ - summatively assessed to IB criteria
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2Aug 29, 2011Students determine amount of agar, NaCl and water to make specific concentrations of salty agar for next lab2.101---√A block onlyOnly A block HL did this
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3Sep 8, 2011Students use "salty agar" and Vernier conductance meter to investigate SA/V ratio. See <http://jbworld.jbs.st-louis.mo.us/science/resources/MBLabs/06_Cell_Size_Stud2.pdf>2.122∆∆
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4Sep 21, 2011Measure molecule length using oleic acid droplet placed onto lycopodium covered water surface.2.401---A block only
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5Sep 28, 2011Students identify interphase, prophase, metaphase, anaphase and telophase (or cytokinesis) using prepared onion root tip slides.2.511---Students marked according to number of phases found correctly.
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6Oct 12, 2011Build tetrahedral model of carbon atom.3.150.5----E block only
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7Oct 23, 2011Measure boiling temperatures to investigate the difference in properties of lipids, water and alcohol (ethanol)1; 211-√-
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8Oct 27, 2011Investigate the properties of 5 white powders (NaCl, NaHCO3, sucrose, napthalene, starch) to deduce their identity.3.1122---assessed on completion of task (appropriate participation in activity and data recorded in labbook)A (Sun Jae, Rachel) E (Justin Park)
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9Nov 21, 2011Group 4 project (Nov 21, 28, Jan 11, 17) topic: "Conserving Energy at school."(all)1010---
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10Jan 30, 2011Use Carolina "Fermentation Kit" to measure affect of changing substrate (glucose or sucrose) or CHO concentration on fermentation rate of yeast.3.72; 322√√
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11Feb 8, 2012Use pigments from spinach to produce chromatograph and determine Rf value of pigments.3.811----calculate Rf and answer questions in lab book only. A block only; not E block.Absent: Jenny, Sang, So Yeon, (see lab books)
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12Feb 9, 2012Use chlorophyll from spinach leaves and Spectrophotometer 20D to experimentally determine chlorophyll's ideal wavelength.3.8, 8.2, C42; 312----Crush leaves in ethanol; filter with coffee filters (works best!) Dark green should be diluted with ethanol to make sample to "lime" green color.Missing hour 2(need to collect 640 - 900 nm data): Jeff, Sun Jae, Sooyong, Audrey, Jenny, Min Sung
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13Feb 15, 2012Simulation: student build 3-D model of chloroplast - no drawing! - in which each structure is a unique paper color.3.8511---Label all structures, but NO drawing (this bypasses the value of building for understanding)
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14Feb 17, 2012Given absorbance data <http://biology.wsc.ma.edu/biology/courses/concepts/labs/pigments/pigments001.txt> students graph one pigment alongside their own spinach absorbance and compare the graphed data sets in writing.3.8, c3401-√--A block HL only.
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15Feb 28-29, 2012Measure affect of selected IV on photosynthesis using Leaf disc assay (using Carolina kit). 3.8, 8.2, C4122√√Note: spinach (shee-goom-chee) works best; sesame & geranium do not work.
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16Mar 6, 2012Measure effect of one factor on light intensity using Vernier's "light sensor"3.8, 8.2, C4101√√A block HL only.
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17Apr 11, 2012Design an experiment to measure the affect of one factor on heart rate (using Vernier Hand-Held Heart Rate Monitor).6.2111√This design lab included 1 hour or using heart rate monitor in class to trial and error how it works and the effect of different IV tested by different students.
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18April 16, 2012Design and carry out an experiment to measure the affect of holding your breath on heart rate (using Vernier Gas Pressure Sensor, Vernier Respiration Belt, and Vernier Hand-Held Heart Rate Monitor)6.2, 6.31, 2, 333√√√Although this seemed initially like a no-brainer, in fact there are a LOT of variables, and even given "holding breath" as IV, there are many dimensions to manage and a myriad of aspects to control. This is a very challenging practical which students found very hard to complete successfully.
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1 - data logging
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2 - graph plotting software
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3 - spreadsheet
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4 - database
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5 - simulation / computer model / model building
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