In order to do so they will have to persevere.īefore starting the puzzle, the teacher asks the essential question “Where have you seen patterns in your life?” In groups of three to four students they will respond to this question using the Chalk Talk strategy ( Ritchart, Church, and Morrison 2011). Reinforce that they absolutely can complete the puzzle and figure out the pattern. Students are informed that the puzzle will be challenging, and they need to draw on their growth mindset. This is important because many students find science challenging, and having these conversations in the beginning starts to create a culture that welcomes mistakes as part of the learning process. Students should have experience with the ideas of Carol Dweck and understand the difference between having a growth mindset and fixed mindset, and what it means to have a mastery response or a helpless response ( Dweck 2006 Mindset Works 2016). Explain that today they will be working on some different kinds of puzzles. Students spend time sharing about their experiences with puzzles and connecting them to their own interests. Start class by asking students about their experiences with puzzles, if they like puzzles, and what kinds of puzzles they like. Then after reading a non-fiction text about his contributions ( Bryson 2008), students gain a foundational understanding of the patterns within the periodic table before spending time exploring the properties of the families. Students first emulate Dmitri Mendeleev’s own experience with organizing the elements through a puzzle activity, using patterns to make predictions. The following lesson requires about two traditional class periods or one block period and follows the 5E Instructional Model designed by the Biological Sciences Curriculum Study ( Bybee 2014) with the added Elicit stage proposed by Eisenkraft (2003). Furthermore, observing patterns and the relationships underlying them is one of the key crosscutting concepts found in the NGSS (see NGSS connection box, page 35). The underlying patterns described by periodic law, such that the table is organized horizontally by the number of protons and vertically by similar chemical properties in addition to the repeating patterns associated with those electrons found in the outermost shell of an atom correlate with the Next Generation Science Standards ( NGSS) Disciplinary Core Idea (DCI) Structure and Properties of Matter (PS1.A) ( NGSS Lead States 2013). This year, The International Year of the Periodic Table, marks its 150th anniversary, and represents a good opportunity to highlight its history. This might involve memorizing the symbols of the elements, learning about the properties of the families, or understanding its general organization. The rare earths are silver, silvery-white, or gray metals.Teaching the periodic table is a central part of chemistry.Helium (He) has only 2 electrons in the outer shell = Full.Very reactive are often bonded with elements from Group 1.Contains metals, metalloids, and non-metals.Contains metals, metalloids, and a non-metal Carbon (C).Can bond with many elements in a variety of shapes.The transition metals are able to put up to 32 electrons in their second to last shell.Good conductors of heat and electricity.Hydrogen is not a member, it is a non-metal.Elements in each family react differently with other elements.Each family has a specific name to differentiate it from the other families in the periodic table.Elements on the periodic table can be grouped into families bases on their chemical properties.Reactivity Alkali Metals and Halogens are very reactive because they have either 1 or 7 valence electrons When you look at a periodic table, each of the rows is considered to be a different period The elements in a group have the same number of electrons in their outer orbital (Valence). Period and Groups When a column goes from top to bottom, it's called a group. Bean, Discovery Scienceĭirections Obtain a periodic table or download it Read through the PowerPoint and color as indicated Answer post-project questions sheet. Coloring Part 1 Coloring the Periodic Table Families Mr.
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