Blood Lesson Plan
Duquesne University
Blood Lesson Plan
Subject: 9th Grade Biology
Estimated Time of Completion: Two 45 minute class periods
RATIONALE
This lesson looks to provide authentic instruction on features of red blood cells. Students will investigate a fake crime scene within the classroom in order to determine the “classroom killer.” Within the crime scene, students will be tasked with learning how to type blood and through this, understand the concepts of ABO protein markers and Rh factors. The crime scene investigation will develop student analytical skills and laboratory technique while introducing them blood chapter within the circulatory system unit.
I. OBJECTIVES
1. Students will be able to describe the three main components of blood: cells, cell fragments, and plasma.
2. Students will be able to support their alleged suspect through evidence provided by blood typing.
3. Students will be able to compare and contrast properties of red and white blood cells.
4. Students will be able to create a timeline relaying the events that occur when a blood vessel is torn.
II. MATERIALS NEEDED
Class copies of crime scene investigation sheet
Crime scene kit
Milk
Food coloring
Dropper bottles
Vinegar
Class set of textbooks
BDA guide for Blood chapter
Computer with projector and Smartboard
III. ANTICIPATORY SET
Students will be broken up into small groups. Each group will be handed a “water bottle” model of blood which includes cheerios (red blood cells), marshmallows (white blood cells), and pompoms (platelets). Students will be asked to quantify the amount of each cell type within the model and convert the quantities to percentages.
Groups will be asked to:
Record the percentage of red blood cells, white blood cells, and platelets in the model.
Determine the cell type with the highest percent abundance.
Attempt to explain why the body may need...