Delsey Kempf Naming Inorganic Compounds – Review and Practice Oct. 20, 2010 Regents Chemistry-Grades 10/11 Rationale: We recently began a new unit after the Periodic Table Unit was completed. This new unit is entitled Moles and Stoichiometry and involves more math to apply what they have learned about the periodic table. Thus far the students have learned what a mole is and the number of objects in a mole. They have learned to explain the relationship between gram atomic mass, moles, and AMU and determine the gram atomic mass of elements and the gram molecular mass of any compound. The students have learned how to convert between grams and moles of elements and compounds and explain the difference between grams and moles. Now the students are learning the nomenclature for inorganic compounds. Goal: Yesterday I taught the nomenclature of inorganic compounds after comparing and contrasting elements and compounds and comparing and contrasting compounds and mixtures. I explained and gave examples of how elements combine in simple ratios to form compounds. I also explained how all areas of a compound are uniform whereas mixtures are not uniform throughout. Students than learned the proper naming of the main types of inorganic compounds. They learned the rules for the nomenclature of chemical compounds and did some examples in class and for homework. They learned how to use their reference tables E and K to aid in naming compounds. Since I have covered a great deal of material in the past two lessons, today they will get more needed practice in these concepts. I feel this is needed before moving on to writing chemical formulas and using the stock system of writing chemical formulas. Instructional Objectives: Students will be able to identify and name any binary inorganic compound and polyatomic ion in a compound. Students will be able to describe a polyatomic ion. Students will be able to name inorganic compounds containing binary compounds. Students will be able to use Chart K to name acids. Students will be able to identify and name binary and tertiary acids. Students will also be able to name binary nonmetal compounds with the old fashioned prefix names. Standards: Physical Setting/Chemistry Core Curriculum, Key 3.1cc: A compound is a substance composed of two or more different elements that are chemically combined in a fixed proportion. A chemical compound can be broken down by chemical means. A chemical compound can be represented by a specific chemical formula and assigned a name based on the IUPAC system. Materials: Naming Chemicals Homework sheets, Chemical Bingo Cards with two games per card, Reference tables for Physical Setting/Chemistry, White Board marker/White Board, Bingo Call Sheets(lists of chemicals) to write on board Implementation: Time Activity 0-10 minutes Go over last night’s homework on naming chemicals and nonmetals with examples and questioning; collect 10-40 minutes Chemical Bingo Game with teacher calling/writing nomenclature on board and students matching chemical formulas to nomenclature called. 40-43 minutes Answering questions and rewarding winners. Assessment: I will question the students when going over the homework, particularly focusing on the student or students I know from previous units are struggling with material and in danger of failing Regents Chemistry at Mid-marking period. The Chemical Bingo game is an interactive, competetive summative assessment of how well students have grasped the material and concepts covered so far. If the students have covered the correct chemical formulas it will show they have a good understanding of the concepts. If they have covered incorrect formulas it will reveal misunderstandings. The game provides practice in applying the rules for naming inorganic chemical compounds. Homework : Finish writing up QA on the Job lab where students converted grams to moles and finding the number of moles of elements in a sample. Resources: Cameron, P. and Romano N. Physical Setting:Chemistry STAR Review, 2005:N&N Publishing. Kirk, F. UPCO’s Physical Setting Review Chemistry, 2009: United Publishing, Albany. Reflection: Students loved this review and it provided a great active learning strategy . It helped to reinforce all the naming rules the students have LEARNED and serves as an assessment that can be graded as well. I like the pairing up in the beginning when they have to write the names in for the formulas on their boards. It is like a double practice. My questioning and going over homework plus circulating went well . I began the class with, “What did you learn about binary and tertiary compounds yesterday?” Students began responding with different ideas. I asked clarifying questions as I returned papers. I am noticeably more comfortable with the students. As I continued the review of the previous lesson, more questions came from the students that related to the homework. I then turned to going over the parts of the homework that dealt with those topics. During this time I was calling on students by name, adjusting the technology, and multitasking easily; demonstrating greater comfort with the content and classroom management. I was directing the students to look at their resources as they work through the correct answers of the homework. As I finished up going over the homework, I asked if there are any more questions. I waited, scanned the class, specifically called a student by name and asked, “Are you getting this?” The student responded, “Yes,” but that she had a question on another part of the homework. I went through the problem step-by-step using a “Think Aloud” method. I used this method repeatedly in the class and it was very effective