Atomic Structure - Electron Arrangement in Atom

Teacher does an explicit explanation of the standard and the objectives and how the period will start and end based on the activities presented and the time limit given. Art work supplies are available for student’s consumption. A blank periodic table sign-in sheet for the art work and media presentation is available on the teacher’s table.  (5 minutes)

ENGAGEMENT
Activity 1. Students do the Think-Pair-Share to discuss the art work for Bohr’s atomic model. They work in a small group just to collaborate but should produce an individual Bohr’s atomic model using big and small styrofoam balls, toothpicks and colored sharpies (20 minutes).
EXPLORATION
Activity 2. Students will work at the lab station to work with a partner to create a Bohr’s atomic model of the atom they made from the activity 1  but this time they will be challenged to identify the subatomic particles using Bohr’s atomic model template, task card that they have to follow and different colored circle cut out that represent proton, electron and neutron. (20 minutes)
EXPLANATION
Teacher will be clearing up any misconceptions about atoms, neutral atom and the isotopes of an atom. Use SmartBoard to show problems to solve for the number of neutron given the mass number and the number of protons. (5 minutes)
EVALUATION
Students will work individually on the Chromebook to answer the following questions. (20 minutes)
1.    How do you compare and contrast an atom and an isotope?
2.    How do you identify the element based on the number of neutrons given? Show one sample computation.
3.    How does Bohr’s atomic model differ from the rest of of the atomic models?
4.    How can electrons in an atom move from one energy level to another?
ELABORATION
Activity 3. Students will work with a partner to create a media presentation of their choice (Google Slide, Prezi or Power Point)  of the element of their choice using a presentation rubric given. Presentation should include the name of the element of an atom, picture, who and how it was discovered, detailed atomic structure using Bohr’s model, its uses/benefits (3-5 slides), pictures should be clear and text should be readable. (20 minutes)
Note: Media presentation the next day and homework assignment posted on Google classroom.
 
 

Provide feedback to students while activity is in progress and after each activity is done.

Use the Presentation Rubric from PBLWorks for the media presentation the next day.

Score cards for activities 1 and 2 

Essential Questions number score

PBLWorks Presentation Rubric for media presentation.