Lesson Plan : Blood Typing

Teacher Name:
 K Alexander
Grade:
 Grade 9-10
Subject:
 Science

Topic:
 Blood Typing, predicting blood type offspring, determining possible donors/receivers
Content:
 blood-typing, Punnett square, universal donor, universal receiver, compatibility, genotype, phenotype
Goals:
 Students will be able to predict possible blood types of offspring. Students will be able to determine what blood types are compatible.
Objectives:
 TLW use Punnett squares to disprove the paternity of offspring based on blood types. TLW describe why an injured person can or cannot receive blood from certain doners and why.
Materials:
 smart board presentation cups blood type chart red food coloring http://www.lessonplanspage.com/SciencePEBloodTypeCompatibilityDemonstration512.htm (print off) http://www.biology.arizona.edu/human_bio/problem_sets/blood_types/blood_types.html computer internet blood typing worksheet blue food coloring
Introduction:
 Scenario 1 - teenager questions whether her sister has the same father as she. Scenario 2 - a person is rushed to the hospital and is given the wrong type of blood.
Development:
 1. Review how to use Punnett squares 2. Show ALL possible genotypes and phenotypes for blood. 3. Show 2 practice problems to determine possible genotypes and phenotypes of offspring 4. smart board presentation showing how blood typing is done. 5. Show pictures of what happens when the wrong blood types are mixed. 6. Discussion on how mixing blood types can kill a patient.
Practice:
 1. Give genotypes of parents and use Punnett squares to determine genotypes and phenotypes of possible offspring. 2. blood typing lab with food coloring
Accommodations:
 Give students a print off of the smart board questions and notes. Allow students to work with a partner when completing the independent practice. Give gifted students more difficult questions and ask them to explain their answers.
Checking For Understanding:
 1. Students will write a paragraph explaining why it is important to know a patient's blood type before giving them blood and explain what blood types are the best for donating and receiving. 2. Students will write a paragraph explaining how Punnett squares using blood typing cannot prove someone is the parent, just that someone is not the parent.
Closure:
 Ask students to write in their notes what they learned in class and why it is important to them.
Evaluation:
 Check their practice and read and respond to their paragraphs. Students should be able to answer the smart board questions and worksheet questions correctly.
Teacher Reflections:
 Were students able to determine the best blood type to receive and donate and back their explaination? Were students able to support how to determine why someone is not the parent of a child?

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