Basic Concept Calculations presented by Diana Mason, Deborah Koeck and Joyce Kulhanek, ACT2 2010 The Texas Education Agency has issued and implemented major revisions to the chemistry TEKS. Chemistry is usually the first course students take that requires them to understand how to solve problem that can't just simply be memorized. Even though these new standards have been aligned with algebra I, the actual use of this knowledge is in the middle to higher levels of Bloom's Taxonomy (application, analysis and synthesis). There is also a new emphasis on mathematics that will be incorporated into the Chemistry STAAR exams. This workshop will take 12 (or more) calculations from the revised TEKS that are also documented in the Texas College and Career Readiness Standards and will share teaching suggestions and activities supporting the following: basic conversions and use of exponents, density, atomic mass determination, and gas laws (Boyle's, Charles', Avogadro's and combined)

1. A Dozen or More Calculations Basic Concepts Mason, Koeck, and Kulhanek

2. BCCE August 1-5 University of North Texas Denton, Texas

3. TEKS Development and Correlation to CCRS

7. Explanation Periodic Table Foldable Lanthanides Actinides Alkali Metals Alkaline Earth Metals Boron Group Carbon Group Nitrogen Group Oxygen Group Halogens Inert or Noble Gases Transition Metals

12. Evaluation Average Atomic Mass Texas Connection On February 11 at Salado, south of Saltillo, they attempted a mass escape. After nearly starving in the arid mountains, 176 of the 193 escapees were recaptured and returned to Salado, Tamaulipas, Mexico. (However, three escapees did reach Texas.) Soon after they arrived at the Salado on March 25, 1843, they were informed that they were to be decimated (every tenth man shot) by order of Mexican dictator Antonio López de Santa Anna.

13. Average Atomic Mass Texas Connections- Evaluation Seventeen black beans and 159 white beans were placed in a vessel and each man was required to draw out one. Those drawing black beans were swiftly shot. Ewen Cameron, who had engineered the escape, drew a white bean but was executed afterwards by special order bringing the total executed to 18. The bodies from the failed Mier Expedition were returned to Texas and are buried on Monument Hill at La Grange, Fayette County.

14. Average Atomic Mass Evaluation Use the small sample of beans to “decimate your group. Using the beans determine who will report your finding to the entire group along with your initial impressions of the new chemistry calculations.

15. A Dozen or More Calculations Additional Basic Concepts Density, Unit conversions, measurement, safety