# Category Algebra

# Phase Shifts – Effects on Thermal Conductivity

What is thermal conductivity? The ability of a material to transfer heat energy via conduction.

While this is only the first trial, my task was to show that there is a significant drop in thermal conductivity of a material as it shifts from one phase to another. In this case, the sample shifts from a solid to a liquid around 18 oC. As you can see, the thermal conductivity is lower for temperatures higher than 18 oC. Cool huh?

When I am done, I will commit an entire page to show everything from beginning to end. Really I just want post the graph on twitter, but I know people will ask questions so….

8 Empowering Ways to Beat Math Anxiety

The author, Bon Crowder, has distilled 8 things that you as a parent, teacher, tutor or homeschooler can do to help a child with math anxiety.

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# Free Graphing Calculator App for iPhone

# Common Core in Mathematics: Shifts 2-6

# Khan Academy

While it is not new, Khan Academy is something worth sharing. Go to http://www.khanacademy.org/ to watch thousands of tutorials for free online.

# Translating Functions

**Description:** In this activity students learn about and practice how to translate functions, and identify translations from equations of functions.

http://media.mivu.org/mvu_pd/a4a/resources/translations/index.html

# Categorizing Patterns and Relationships

**Description:** In this activity students explore the characteristics of various function families by comparing the patterns in six different tables of values and identify which type of relationship is shown in each one.

http://media.mivu.org/mvu_pd/a4a/resources/categorizingpatterns/index.html

# Comparing Linear and Expontential Functions

**Description:** In this activity students compare linear and exponential models by listing their characteristics side-by-side in a table.

http://media.mivu.org/mvu_pd/a4a/resources/comparelinexp/index.html

# Lilly’s Mussels – A Modeling Exercise

**Description:** Apply a linear and exponential model to a small data set in order to explore the differences in growth pattern, depending on which model is selected.

http://media.mivu.org/mvu_pd/a4a/resources/mussels/index.html