This applet adds relevance to the equilibrium portion of the course and provides an interesting problem-solving activity. To get to the top of the mountain before winter arrives, students must derive an equation that relates the necessary amount of hemoglobin to the partial pressure of oxygen at the current and next camp. Everest connects a paper and pencil calculation to a computer simulation of a real-world phenomenon. The calculation is challenging, but is similar to those that the students often solve in the equilibrium part of the course. The applet illustrates the use of computer simulation to allow students to interact with a complex phenomena, at an earlier point in a course than would otherwise be possible. For instance, the Everest applet involves a kinetic phenomenon: the body responds to a decrease in the amount of atmospheric oxygen by growing more hemoglobin. Nevertheless, the problem is presented in such a way that students need only understand the chemical equilibrium of a single chemical reaction. The kinetic aspects of the system are handled by the simulation; the student need only wait until the amount of hemoglobin produced by the body is sufficient to survive at the next elevation. Everest also implements a simple approach to automatic grading. When a student successfully climbs the mountain, the applet sends an email (containing an encrypted key word) to the teacher indicating that the student has completed the assignment.
In this activity, students will hook up a hair to a lever system and create a hair hygrometer to measure changes in humidity. Invented in 1783, the hair hygrometer was so reliable that it was not replaced by an electrical instrument until the 1960s.
Sensibilisation des étudiants au problème des déchets engendrés par les activités de laboratoire et d'atelier des lycées et lycées professionnels.
In this interactive object, learners review descriptions of various blood collection tube additives. They then test their knowledge by matching the different tubes to their corresponding additives. Resource from Wisc-Online : free access but sign-in is mandatory.
With Identification of Chemical Bonds II, students write electron configurations of ground-state atoms, analyze formulas, build basic units, bond basic units, and analyze the substance corresponding to different chemical formulas. Then, in a computer lab, they receive a sheet at random containing two chemical formulas for which they must complete all the previously learned steps and print the report.
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