Evolution

Evolution Box Block Plan

Week 1 - Pretrip

Monday - Observation Mariposas in the classroom, camouflaging into the room, see whose lasts the longest between 6th and 7th grade.   

College Biology Box

This series of activities is designed to complement a semester long introductory biology course for non-majors (general education) at a 4 year university. These activities are designed to be used to review material from the week's lecture in an activity-based way that is practical to implement in a  section of 25-75 students.

The original course is structured in 3 segments:

Evolution Assessment

Performance Tasks

  • Students will be able to design an organism that could live in Pt Reyes, both today and what adaptations it would need in order to live there in one million years.

Biology for Future Elementary Teachers

Here's my current syllabus for an introductory college biology course for undergraduates planning on entering elementary teaching. This is NOT your traditionalcollege biology course. The goal of this course is to give students mastery over theconcepts required of K-8 students in California in a hands-on, experiential way.

8. Bird Beak Buffet

Summary
Inspired by observations of finches on the Galapagos Islands, Charles Darwin came up with an idea that is perhaps the most influential idea in all of science - natural selection. In this classic activity, students learn about natural selection by becoming birds foraging for food on an island (a large area of the schoolyard or classroom). The prey (beans) vary in their coloration such that some blend into the environment better than others. The birds vary in the type of beak they have (plastic forks, spoons and knives). Each season, any prey that survives has a baby bean the same color as the parent. In addition, the most successful birds has a baby with the same beak trait while the least successful birds die (and are reincarnated as the babies of the successful birds). Over several generations, the bird and bean populations shift depending on the environment. Well camouflaged beans survive and reproduce. Birds with beaks that can easily capture beans survive and reproduce. In this way, students model natural selection in 2 species and get a very good idea of how natural selection works.

Real World - Sickle Cell Anemia

Sickle Cell Anemia
Sickle-shaped red blood cellsSickle-shaped red blood cellsSickle cell disease is a disorder that affects the red blood cells. Red blood cells use a protein called hemoglobin to transport oxygen from the lungs to the rest of the body. Normally, red blood cells are round and flexible so they can travel freely through the narrow blood vessels.

Patients with sickle cell disease have a mutation in a gene that codes for part of the hemoglobin protein. As a result, hemoglobin does not form properly, causing red blood cells to be oddly shaped. These irregularly shaped cells get stuck in the blood vessels and are unable to transport oxygen properly, causing pain, frequent infections, and damage to the organs. Patients with sickle cell disease only survive to be 20 to 30 years old. About 1 in 500 babies born in America has the disease.

The normal hemoglobin nucleic acid sequence looks like:
T A C C A C G T G G A C T G A G G A C T C
A T G G T G C A C C T G A C T C C T G A G