| Title: Heredity
As it Relates to You and Me |
| Subject: Science
|
| Grade Level: 7
|
| Overview:
|
| This lesson introduces the use Punnett squares to predict the
outcome of certain traits between homozygous and heterozygous crosses.
It also distinguishes between dominant and recessive alleles. |
| Approximate
Duration: One 50 minute class period |
Content Standards:
- Life Science
The students will become aware of the characteristics and life
cycles of organisms and understand their relationships to each other
and to their environment.
|
Benchmarks:
- LS-M-B2
describing the role of chromosomes and genes in heredity;
(1,4)
- LS-M-B3
describing how heredity allows parents to pass certain traits
to offspring. (1,4)
|
Interdisciplinary Connections:
- Mathematics : Data analysis, Probability, and Discrete Math
In problem-solving investigations, students discover trends,
formulate conjectures regarding cause-and-effect relationships, and
demonstrate critical thinking skills in order to make informed
decisions.
|
Educational Technology Standards:
- Demonstrate the operations of a computer (e.g.,
touch-keyboarding skills, save, organize and back-up files) and
other peripheral devices (scanner, digital and video cameras, VCR,
laser disc player) at an intermediate level.
- Use information, media, and technology in a responsible manner
which includes following the school's acceptable use policy,
adhering to copyright laws, respecting the rights of others, and
employing proper etiquette in all forms of communication.
- Understand Internet concepts (e.g., website, hypertext link,
bookmarks, URL addresses) and apply intermediate on-line searching
techniques (e.g., employ keyword, phrases, and Boolean Operators).
|
Objectives:
TLW:
1. distinguish between dominant and recessive alleles.
2. distinguish between genotype and phenotype.
3. complete Punnet squares when given the genotype of each parent.
4. predict the outcome of offspring after completing a Punnet square.
|
Lesson
Materials and Resources:
World Wide Web
|
Technology
Tools and Materials:
Hardware:
Computer
Printer
Floppy disk
Software:
Microsoft Word
Websites:
Trackstar: Heredity As it relates to you and me
http://trackstar.4teachers.org/trackstar/ts/viewTrack.do?number=138170
|
Background
Information:
Students will come to class with a basic knowledge of genetics and
heredity. They should have a basic understanding of genotypes and
phenotypes as well as dominant and recessive alleles. They should be
able to access the Internet and follow directions on how to finish
this assignment. |
Lesson
Procedures:
1. Have students open a Word document on their computer.
2. Students will now go the Trackstar Website and access track number
138170.
3. Students will follow the instructions on the track to finish the
assignment. |
Assessment
Procedures:
Teacher observation
Copy of completed track
Rubric |
Accommodations/Modifications:
Special needs students and 504 students will be paired with stronger
students for peer tutoring. Students will be given oral as well as
visual instructions on how to complete this assignment.
----- written by
Patti Carter
|
Reproducible
Materials:
|
Lesson
Development Resources:
State Curriculum Guide
Trackstar
World Wide Web |
Contact
Information:
Patti Carter
patti.carter@mcschools.net
Lee Jr. High |
