Course Profile - Curriculum Services Canada

More documents

Recommendations

Info

Assessment & Evaluation of Student Achievement A short quiz could be used to ensure that students understand the characteristics and components of a buffer system. It would be appropriate to have students participate in peer assessment of group work skills. Quiz (Knowledge/Understanding, Making Connections) Research and/or Report (Inquiry, Communication, Making Connections) Accommodations • Have a range of reading materials for answering assigned questions. • Continue the use of a glossary. Resources Chem tutor – http://www.chemtutor.com/acid.htm#buffmat - Buffer activities Activity 1.6: End-of-Unit Task and Written Test Time: 3.5 hours Description This activity is composed of two distinct parts. The first part provides students with an opportunity to combine knowledge and skills acquired throughout the unit to investigate a system at equilibrium. Students design a procedure, make their own solutions, perform a titration, collect and analyse data and communicate their results in a formal laboratory report. The second part is a written test used to assess students’ knowledge and abilities to make connections. Strand(s) & Learning Expectations Strand(s): Chemical Systems and Equilibrium Learning Expectations CSV.01 - demonstrate an understanding of the concept of chemical equilibrium, Le Chatelier’s principle, and solution equilibria; CSV.02 - investigate the behaviour of different equilibrium systems, and solve problems involving the law of chemical equilibrium; CSV.03 - explain the importance of chemical equilibrium in various systems, including ecological, biological, and technological systems; SIS.01 - demonstrate an understanding of safe laboratory practices by selecting and applying appropriate techniques for handling, storing, and disposing of laboratory materials, and using appropriate personal protection; SIS.02 - select appropriate instruments and use them effectively and accurately in collecting observations and data; SIS.03 - demonstrate the skills required to plan and carry out investigations using laboratory equipment safely, effectively, and accurately. Prior Knowledge & Skills • Students should be familiar with standardizing acids and bases with titration, the common ion effect, K eq , K sp and K a and quantitatively determining K eq and K sp . Unit 1 - Page 15 • Chemistry – University Preparation
Planning Notes • Prepare the following solutions at least one week in advance: Ca(OH) 2 and Ca(OH) 2 with dissolved calcium salt such as Ca(NO 3 ) 2 . • Take proper safety precautions when using concentrated stock solutions. • Follow all board regulations for the safe handling and disposal of chemicals. • Ensure appropriate materials are available: titration apparatus, filter paper, indicators, thermometers, concentrated hydrochloric acid. • Prepare a written test that assesses students’ knowledge and ability to make connections. Teaching/Learning Strategies 1.6.1 Student Activity: Students use their knowledge of K sp to design and conduct an experiment to determine the solubility product constant for a semi-soluble salt, such as Ca(OH) 2 . Students should then use their knowledge of the common ion effect to determine the additional calcium ion concentration in an equilibrium system, e.g., Ca(OH) 2 containing dissolved calcium salt. This activity provides students with an opportunity to link skills and knowledge used throughout the unit, such as, using appropriate safety procedures, applying Le Chatelier’s principle, and performing a titration. Teacher Facilitation: Prepare two solutions, Ca(OH) 2 and Ca(OH) 2 with dissolved calcium salt, at least one week prior to use. Review the evaluation scheme with the class. Encourage students to consider using methods or techniques to maximize accuracy, e.g., filtering the Ca(OH) 2 solutions, using three trials etc. Ca(OH) 2 is corrosive. Remind students to handle and dispose of chemicals safely. The teacher may also allot time during the activity to assess the students’ practical skills. 1.6.2 Student Activity: Students complete a written test. Teacher Facilitation: The teacher generates a test focussing on Knowledge and Making Connections. Assessment & Evaluation of Student Achievement A formal laboratory report for the experiment would be appropriate, since it helps prepare the student for the Final Assessment Task. A written test including a variety of types of questions could be used to assess the student’s knowledge and ability to make connections. Report (Inquiry, Communication, Making Connections) Unit Test (Knowledge/Understanding, Making Connections) Accommodations • Provide identified students with extra time for the written test. • See Accommodations in the <strong>Course</strong> Overview. Unit 1 - Page 16 • Chemistry – University Preparation
Page 1 and 2: Course Profiles Public District Sch
Page 3 and 4: Course Overview Chemistry SCH4U, Gr
Page 5 and 6: • The Expectations are central to
Page 7 and 8: Unit Overviews Unit 1: Chemical Sys
Page 9 and 10: 2.1.3 Students participate in a sem
Page 11 and 12: Unit 3: Electrochemistry Time: 18 h
Page 13 and 14: 3.3.6 Students make their own notes
Page 15 and 16: Suggested Activities Development of
Page 17 and 18: Activity/Time/Focus Learning Expect
Page 19 and 20: 5.7.2 Students conference individua
Page 21 and 22: Teaching/Learning Strategies Need f
Page 23 and 24: However, when group assignments are
Page 25 and 26: The Final 30% Examination Students
Page 27 and 28: OSS Policy Considerations Students
Page 29 and 30: OC1.04 - demonstrate an understandi
Page 31 and 32: CS1.05 - describe the tendency of r
Page 33 and 34: Specific Expectations Understanding
Page 35 and 36: 1.6 End-of-Unit Task and Written Te
Page 37 and 38: CS2.01 - use appropriate vocabulary
Page 39 and 40: 1.1.4 Student Activity: Students re
Page 41 and 42: Planning Notes • Prepare lesson n
Page 43 and 44: Teacher/Learning Strategies Act 1.3
Page 45 and 46: SIS.01 - demonstrate an understandi
Page 47: Activity 1.5: Buffer Solutions Time

Course Profile - Curriculum Services Canada

Create successful ePaper yourself

Delete template?

Save as template?