Illuminations: Make a Conjecture
Illuminations (National Council of Teachers of Mathematics)

Doctors and veterinarians are interested in a quantity called the “cardiac output” which is a measure of the rate of blood flow being pumped by the heart.

Illuminations: Gather Data
Illuminations (National Council of Teachers of Mathematics)

Students will construct a simple experiment, using a catheter, which can measure cardiac output.

Illuminations: Analyze the Data
Illuminations (National Council of Teachers of Mathematics)

Students will analyze and graph the data taken from previous two lessons. 

Illuminations: Reflecting On Your Work
Illuminations (National Council of Teachers of Mathematics)

The methods explored in the measuring of cardiac output can be applied to other situations.