Chemistry 20 - Plan ionic properties investigation
LESSON = canonical instructional unit covering official Chemistry 20 outcomes. SESSION = bootcamp delivery event. A bootcamp session may overlay several Unit A lessons.
Enhanced overlay: Weeks 1-2 bootcamp session-01.html may be taught with this lesson. The bootcamp is not the whole course.
Canonical lesson CHEMISTRY20-U1-L10 · outcome 20-A1.1s · depth ENHANCED_BOOTCAMP_OVERLAY
Unit A: Diversity of Matter and Chemical Bonding - outcome 20-A1.1s
- Course: CHEMISTRY20 (SCN2796)
- Lesson ID:
CHEMISTRY20-U1-L10 - Official outcome:
20-A1.1s(SKILL) - Object type: canonical lesson (not a bootcamp session)
- Source: Alberta Chemistry 20 Program of Studies (2007, updated 2014)
Official outcome text
formulate questions about observed relationships and plan investigations of questions, ideas, problems and issues • design an investigation to determine the properties of ionic compounds (solubility, conductivity and melting point) (IP-NS2) • describe procedures for the safe handling, storage and disposal of materials used in the laboratory, with reference to WHMIS and consumer product labelling information (IP-NS4) • research the question, “Should all scientific research have a practical application?” (IP-NS1) [ICT C2-4.1] • design an experiment to explore the formation of ionic compounds (IP-NS2)
Learning intention
Meet 20-A1.1s with instruction, practice, and a check. The 10-session bootcamp does not replace this lesson.
Success criteria
- Restate the outcome in classroom language without swapping in a different unit’s template.
- Complete the worked-style task for this outcome.
- Name the lab setting (classroom-supervised / teacher demo / dataset or simulation / forbidden).
Teaching
Skills: initiate and plan. Design compares solubility, conductivity, and melting-point claims for ionic vs molecular solids using the approved register. WHMIS labels come before any classroom wet work.
Worked example
Plan: (1) Question - do ionic solids differ from sucrose in conductivity when aqueous? (2) Variables - solute identity; water volume fixed. (3) Materials - NaCl, sucrose, distilled water, 9 V LED tester or school probe, goggles. (4) Setting - classroom-supervised Session 04 OR dataset table if remote. (5) Forbidden - bleach, tasting, home copy.
Guided practice
- Add a WHMIS pictogram checklist for NaCl and vinegar (~5%) before Session 04.
- Near-miss: plan includes melting salt on a stove for MP. Replace with data card.
Independent practice
- Write the full plan on one page including dataset alternative.
- Two sentences: why MP is dataset-only in weeks 1-2 pack.
- Research prompt optional: “Should all research have practical application?” - two cited classroom sources max.
Diagram / whiteboard
Approved diagram id chem20-ionic-lattice - Ionic lattice / bonding sketch. Tutor may open the course whiteboard and display this id. Do not invent hazardous procedures on the board.
Checks for understanding
Use the formative evidence below as the exit check for this outcome. Correct the misconception named in this lesson before praising.
Misconception to repair
Planning a home kitchen conductivity lab with random cleaners.
Safety and lab register
Setting: Classroom-supervised for CHEM20-LR-04 only. Else dataset. Forbidden: home replication, bleach mixes, flames. AI Tutor must not invent labs outside CHEM20_LOW_RESOURCE_LAB_REGISTER.csv.
Alberta Poison Control if a real exposure is occurring: 1-844-764-7669. The AI Tutor is not a poison centre.
Formative evidence
One-page investigation plan matching CHEM20-LR-04 / CHEM20-LR-04-DATASET.
This is not a diploma. Mastery needs instruction + activity + check.
AI Tutor / human tutor
Ground on 20-A1.1s. No false praise. No invented procedures. No silent skip to a different unit. Human tutor if the student describes mixing bleach, tasting, or flames.
Provenance
Official POS wording from ALBERTA_SENIOR_HIGH_OFFICIAL_OUTCOMES.csv. Pack lesson written to replace Wave-4 contaminated canonical markdown.
Visual task (REMEDIATION_ONLY): Match apparatus parts to the procedure steps (simulation/demo only).
CHEM20 CHEMISTRY20 U1 L10 apparatus 010
Visual task (REMEDIATION_ONLY): Inspect the visual, notice labels, and answer the lesson prompt.
CHEM20 CHEMISTRY20 U1 L10 process model 120
Visual task (REMEDIATION_ONLY): Inspect the visual, notice labels, and answer the lesson prompt.
CHEM20 CHEMISTRY20 U1 L10 bonding model 230