Talking with kids about the building blocks of life (like DNA, blood, and hereditary traits) can be an exciting conversation as they begin to have more curiosity about their communities, friends and themselves. We like to use lessons on genetics and heredity to increase awareness about different processes in the body and talk about what makes students uniquely special.
As a classroom teacher, Children’s Librarian, Girl Scout leader, after-school educator, or any other facilitator, we know you have a lot on your plate to teach AND keep your kids safe. Use our lesson plans to start open conversations about genetics in your space, encourage curiosity about health and the body, and inspire discussions about treating others with kindness.
Our lessons are designed for grades K-5 with the flexibility for you to decide how much depth is appropriate for your students. The activities themselves usually take about 5-10 minutes; full lessons might be 20+ minutes with lots of conversation!
|Genetics Lessons||Blood Breakdown||Print Sprint||Wear a Bear|
|Description||What is blood and why do we need it?||What are the bumps on your fingers for?||What makes us different from other living things?|
|NGSS||LS3.A||LS1.A, LS1.D, LS3.A||LS3-1.A, LS1.B|
What Makes You, You
- Humans are made up of trillions of cells. Each cell in the body contains nearly 30,000 genes, with each gene carrying the information that determines which features we inherit from our parents.
- Each gene is made up of DNA. DNA or “deoxyribonucleic acid” is a long, two-stranded molecule that contains our unique genetic code. Like a recipe book, it holds the instructions for making all the proteins in our bodies
Genetics and Heredity
- Heredity refers to the passing on of physical or mental characteristics genetically from one generation to another
- Our physical traits are only inherited from our parents and grandparents.
- Each parent contributes half of their genetic material to their children. Sometimes one parent may pass more dominant traits to their child, which would result in that child looking more like that parent.
- Some well-known inherited genetic disorders include cystic fibrosis, sickle cell anemia, Tay-Sachs disease, phenylketonuria and color-blindness, among many others. All of these disorders are caused by the mutation of a single gene
Sickle Cell Disease
For someone who has SCD, the red blood cells become hard and sticky and look like a C-shaped farm tool called a “sickle”. The sickle cells die early, which causes a constant shortage of red blood cells. Also, when they travel through small blood vessels, they get stuck and clog the blood flow. This can cause pain and other serious problems such infection, acute chest syndrome and stroke.
Who it affects
In the United States, about 1 in 13 black or African American babies is born with sickle cell trait and about 1 in every 365 black or African American babies is born with sickle cell disease. About 100,000 Americans have sickle cell disease. Pediatric sickle cell disease affects many families. It is the most commonly diagnosed disease in newborn screening. There are also many people who have sickle cell disease who come from Hispanic, southern European, Middle Eastern, or Asian Indian backgrounds.
Genetics in Context: How to Support Students
Use lessons about genetics and hereditary traits to show each child in your space that they are unique and special. Building self-confidence and pride can help with academic and social performance.
Students with certain genetic diseases, such as SCD, may need flexibility regarding missed activities, instruction, testing etc. if they miss class time due to pain, going to the nurse’s office, and/or visiting their doctors.
Bullies might target students who seem “different,” so talking with your participants about asthma and kindness may be beneficial. For a free, PDF book on asthma, please see “All About Asthma” (appropriate for K-5). Use our lesson plans to encourage open conversation and discussion about asthma, healthy lungs and other health topics.