About Blood Groups

Free to teach as-is — the teacher guide, student handout, and slides are included.

Free — we'll email you an access link. Google Docs format.

Objective

I can explain how different blood groups are determined by antigens and antibodies.

Part 1 of 4

Warm-up video

Bozeman Science · 10:46Vetted channel

We don't generate video — this one is by Bozeman Science on YouTube. The practice questions and exit ticket below were drafted by AI for this objective, and every question is editable in the teacher guide.

Part 2 of 4

Key concepts

3 concepts

  1. 1

    Blood types are determined by the presence of specific proteins, also known as antigens, on the surface of red blood cells (erythrocytes).

  2. 2

    Type A blood has A proteins and anti-B antibodies, while type B blood has B proteins and anti-A antibodies.

  3. 3

    A person with type O-negative blood is considered a universal donor because their blood lacks A, B, and Rh antigens, while a person with type AB-positive blood is considered a universal recipient.

Part 3 of 4

Practice

12 questions

1

What determines a person's blood type?

2

If a person has type B blood, which antigen is present on their red blood cells?

Part 4 of 4

Exit ticket

Quick comprehension check

Explain how the presence or absence of specific proteins on the surface of red blood cells determines whether a person has type A, type B, type AB, or type O blood.

Sample answer included in the free materials

Get the materials

Teacher guide, student handout, and slides — free, in Google Docs format

  • Teacher Guide

    Complete lesson plan with answer keys and alternate activities

  • Student Handout

    Printable worksheet

  • Slides

    Ready to present

We'll ask for your email to send your access link — nothing else.

Teaching a group at a different level?

Where are your students right now? We'll rebuild this lesson to match — including the teacher guide, student handout, and slides, saved to your Google Drive.

Adapt This Lesson