![]() ![]() The charge on the anion and number of anions must be used to determine the charge on the cation.Roman numerals are used to indicate charge.One of the particular strengths of this activity is the discussion that occurs as the teacher can see the real-time student responses, but if this is not possible then students would probably benefit from seeing each other’s responses, as they do in a gallery activity where they make observations and leave them at each image on a sticky note.įigure 1: Slide #3 compares platinum II chloride and platinum IV oxide.īy the end of the activity, students should self-discover the meaning of the names and the rules that guide them: A digital whiteboard program such as Jamboard would also be another option to present this activity, but this method would allow all students to see each other’s observations, which may change the way the students engage with the exploration. I did this as a Pear Deck activity (a Google Slides add-on that allows teachers to see student responses to questions in real time), but it could also be done with a different program (such as Nearpod – another digital program that allows teachers to review student work in real time or even screen monitoring programs). As they progress through the gallery, students are prompted to make specific observations and compare and contrast the compounds. During the activity, students explore names, formulas, images and sometimes extra information about related compounds. This activity was designed as a digital gallery walk, but it can also be printed out and used in the traditional format with students writing observations as they move through the “gallery”. As they walk around, they make observations. They have been taught and have extensively practiced forming and naming binary ionic compounds of fixed charge, so they are familiar with the general rules of naming ionic compounds (name the cation first, the anion ends in –ide) as well as the idea of balanced charge in ionic compounds.Ī gallery walk is an activity in which students explore multiple images or texts that are placed around the room. Students may have previously seen some examples of compounds that are formed with these elements, but have not been taught the rules for naming them. To address these misconceptions, I designed a gallery walk to introduce students to the concept of ionic compounds that contain cations of variable charges. ![]() Not realizing that two compounds that contain the same atoms but have different formulas can have very different properties.Not understanding how the combination of the same two elements can lead to two different formulas.Failing to notice the differences in two compounds that vary only by differing charge.Thinking that the Roman numeral indicates the number of atoms instead of the charge.Failing to indicate charge using a Roman numeral.While students usually do well with naming binary ionic compounds of fixed charge, many students struggle with naming ionic compounds that contain ions of variable charge. Textbook content produced by OpenStax is licensed under a Creative Commons Attribution License. We recommend using aĪuthors: Paul Flowers, Klaus Theopold, Richard Langley, William R. ![]() Use the information below to generate a citation. Then you must include on every digital page view the following attribution: If you are redistributing all or part of this book in a digital format, ![]() Then you must include on every physical page the following attribution: If you are redistributing all or part of this book in a print format, Want to cite, share, or modify this book? This book uses the ![]()
0 Comments
Leave a Reply. |
AuthorWrite something about yourself. No need to be fancy, just an overview. ArchivesCategories |