Blood Typing Lecture with Grade Five KCES-I SSES Students

Sir Mark Raymund Nava was invited by Dr. Alma B. Cayanong and Teacher Rhea Javier to impart to grade 5 SSES (Special Science Elementary School) students of Koronadal Central Elementary School - I (KCES-I) his knowledge on ABO blood typing last July 28, 2011. The event started with a lecture about ABO blood typing wherein Sir Mark discussed about who discovered ABO blood groups, what are the antigens/antibodies present in the different ABO blood groups and the reactions of this antigens in blood typing sera.

The students, prior to the event, were hesitant to have there fingers pricked for blood typing. Sir Mark knew that this would happen so he involved the kids in a little experiment he called "Crime Investigation" wherein they will act as scientists who will investigate the death of "Catherine".

Catherine, according to the police, was killed in the shower. Her blood type is "Type B" but Scene of the Crime Operatives (SOCO) found blood samples "Type AB" in the crime scene. Four suspects were invited to have there blood samples undergo ABO blood typing: Aaron - Catherine's suitor, Michael - the houseboy, Ryan - her enemy, and Danny - Catherine's daddy. Blood samples from the suspects were given to each group of students. The "little crime investigators" must identify who killed Catherine. 

Students were provided with Typing Sera (A & B), glass slides, disposable droppers, applicator sticks.

Students were asked not to reveal their results so that the other groups will not copy their results. After the experiment, Sir Mark discussed the results and students were very enthusiastic to share what they have learned with their experimentation.

It was found out that Aaron is "Type A", Michael is "Type B", Ryan is "Type O" and Danny is "Type AB". It was Danny, Catherine's daddy, who killed her. One student even exclaimed, "Hindi ako makapaniwala!"

After the experiment, all students were excited to have their blood samples tested for ABO blood typing. Some students even volunteered to help. Students were given Blood Type cards as evidence of their ABO typing.