We are in the final week. We only meet today this week. I have handed back the IA and Stoichiometry assessment. Students may reassess only the stoichiometry assessment. Students wanting to reassess, my do so at lunch or after school. Wednesday after school I am not available. Students do not need to submit a reassessment for to reassess for the stoichiometry assessment.
Today we went over the DCP section of the IA. We went over common errors on the formative. From there we discussed the conclusion and evaluation section.
The document below has several online quizzes that are graded real time to help you with the skills for tomorrow's summative. Please work through the ones with arrows for building your skills.
Today we worked in the computer lab to finish off our data collection and processing. Students turned in at end of class, the formatted raw data table. processed data (including mean, standard deviation, stoichiometrical amounts, and percent yield), qualitative data, and a properly formatted scatter plot graph of the experimental and stoichiometrical amounts of carbon dioxide plotted against sodium bicarbonate. This is a formative assessment and those how turned it in on time will receive feedback to help them with their final summative (mini IA) which will be due by end of class next Thursday.
Students should at this point have their design complete (design includes all amounts of sodium bicarbonate tested, not just the amount your group was assigned). We went over how this should look the day before the lab. The design should include a title, background with citations, problem/question, hypothesis, independent, and dependent variable, controlled variables, materials, procedure that I gave students, safety considerations, for the data collection and processing section see above. Students should have all of this formatted, typed up and ready to go, we will begin conclusions this week.
Tuesday we have a summative on the quantitative chem skill we have been going over. There are two options for this exam. Proficient for a 4 or Advanced proficient for a higher grade. For proficiency students should be able to identify the type of reaction and do stoichometry with on reactant know and the other in excess, as well as percent yield. For advanced proficiency, students should study, naming of compounds (nomenclature), writing and balancing equations, learn stoichometry for limiting reagent problems, identify the type of reaction, do percent yield, and calculate the amount of left overs from the non-limiting reagent.
Today we continued our work on data collection and processing. We learned how to do percent yield. Students will need to add percent yield to their processed data. We then instructed on using Google sheets to process data and create a graph from our data. End of class on Thursday, students should have all of the following for their formative assessment.
Formatted Raw Data Table
Processed Data Table (mean, standard deviation, stoichiometrical values,and percent yield).
A scatter plot with experimental and stoichiometrical values plotted against grams of sodium bicarbonate (title, labels, trendlines, r^2 values)
You will also need to include a paragraph form your qualitative data (quality - color, bubbles, etc)
Today we had shortened classes due to afternoon Field Day celebration. During class we looked at formatting a data table. We made our data have consistent decimal places at the tenths place. We also used formulas to get the average and standard deviations. I showed student how to simplify the work by using control (command on a Mac) C to copy and control V to paste. We also walked through the stoichiometry equation for our reactions. On Tuesday of next week, we will continue processing our data. I expect students to have a formatted data table with a title, good headings (remember grams), consistent decimals, averages, standard deviations, and stochiometrical amounts. This will be the point we will continue from on our Mini IA process.
The following document will be helpful for your next couple years. This document has citation information for all types of media. Please use this document for citations. The other document is instructions on how to acess LiLI for primary peer reviewed sources.
Below you will find a link to the raw class data that is unformatted. You will need to format and process the data. We will spend class time working on it. But you can get a jump on it with the documents below. One is MS Excel one is Google Sheets.
Today we will conduct the lab. We will work in 5 groups to perform the lab. I have given students a method to follow. Remember we have reduced the grams of sodium bicarbonate to 1g, 2g,3g, 4g, and 5g to reduce the amount of materials used.
Reassessment Note: For individuals to reassess, you need to fill out and return a signed form to me. You will need to schedule some time to get help with the material. You will need to schedule a time before Thursday 5/26.
Today I passed back the formative lab designs. Some of the products were excellent and included some novel approaches to doing the lab. Many of the labs showed student's difficulty with identifying independent, dependent, and controlled variables. We had a group discussion and I mapped out what an example of a design for the lab we will conduct on Tuesday would look like. Students should have the necessary notes to write a design for the lab that we will conduct on Tuesday. The final product of this process is a Design, Data Collection and Processing, and a Conclusion and Evaluation of a full lab. Students will use their research they conducted on their practice design to fulfill the background information section. All labs turned in will be individual and the students own work. The only section which will look like mostly my words is the method/procedure.
Today we looked at stoichiometry and how it will relate to our practice mini - IA. Students were then given the class to write and turn in their Practice Design for the lab. This is a formative and comments will help in the writing of your design for your mini - IA lab write up which will be due on June 9th. NOTE: This lab will not be able to be reassessed.