Khaemenes High · Chemistry 11

Grade 11 · Week 02 · U1

Atomic Models & Evidence

Essential question: How did experimental evidence change models of the atom?

Standards: HS-PS1-180% mastery + correctionsPortfolio evidence

Open Monday Deep Lesson · Model, Worked Example & Practice

Monday

Phenomenon / Launch

Scattering and emission data could not be explained by earlier atomic models.

Learning target

Build an initial model and explanation for: How did experimental evidence change models of the atom?

Evidence task

Record observations, questions, an initial model, and one claim that could be tested. Use these concepts where relevant: proton; neutron; electron; nucleus; model revision.

Open Tuesday Deep Lesson · Model, Worked Example & Practice

Tuesday

Concept & Model Revision

Study and explain the week's core ideas: proton; neutron; electron; nucleus; model revision

Reading

Open chemistry text on atomic models.

Evidence task

Revise Monday's model. Add two evidence-backed annotations and explain one limitation or uncertainty.

Open Wednesday Deep Lesson · Model, Worked Example & Practice

Wednesday

Data & Quantitative Reasoning

Particle counting from atomic notation.

Evidence task

Show units, setup, calculation or graph reasoning, then write what the quantitative evidence can and cannot establish about: How did experimental evidence change models of the atom?

Open Thursday Deep Lesson · Model, Worked Example & Practice

Thursday

Investigation / Engineering

Model-evidence card investigation.

Safety boundary

Use the course safety charter. If supervision, facilities, materials, or conditions are not appropriate, use the supplied-data/simulation alternative rather than improvising hazardous procedures.

Evidence task

Record variables or design constraints, procedure/model, observations/data, and one revision you would make after reviewing the evidence.

Open Friday Deep Lesson · Model, Worked Example & Practice

Friday

CER / Synthesis

Answer the essential question: How did experimental evidence change models of the atom?

Mastery evidence

Submit a claim, at least two specific pieces of evidence, reasoning that connects them, one limitation/counterclaim, and a correction note for any essential concept below 80%.

Portfolio

Select one artifact from this week and explain why it is trustworthy evidence of growth.