3c: Engaging Students in Learning and 1b: Demonstrating Knowledge of Students with a blood model
Some of my students have a tough time understanding concepts if it isn't right in front of them. So to make the concept of oxygenated and deoxygenated blood clearer to them, I had them help me make 2 models for our classroom. These models lasted over a week before getting gross (then I flushed them) and saved the mason jars for next school year. The canning jars were filled with water (to represent the plasma), cheerios (to represent the red blood cells because rbc's don't have a nucleus which made the cheerios a good shape), food coloring (red and blue), and marshmallows. You only need a small amount of cheerios...I purchased a couple of these Cheerios in a cup containers so I don't have to buy and store an entire box of cheerios in my classroom for next year.
