I ran a multi-day poll on Twitter that was designed to be a fun way to determine the “best” element on the periodic table. I’m sharing about the poll here on ChemEdX in case others might want to try something similar in their classrooms. The poll was run tournament-style, fashioned after NCAA Basketball’s March Madness. The event was called #MarchMatterMadness. Just like basketball’s March Madness tournament, four different “regions” were set up, and each element was seeded into brackets according to atomic number.
Curricular Alignment for Student Success
The February 2018 issue of the Journal of Chemical Education is now available online to subscribers. Topics featured in this issue include: diversity within the classroom; assessment and curricular alignment; innovations in laboratory curriculum; electrochemistry; analytical chemistry labs; exploring materials science; engaging teaching approaches; historical perspectives; distilling the archives: lab-on-a-chip and microfluidic devices.
With the start of the school year quickly approaching or having already started for others I wanted to take this chance to update a few resources regarding some periodic table websites and apps for you and your students.
In the August 4th issue of Science Magazine, author Mary Soon Lee shared a review of a periodic table that contains haiku for each element. There is an interactive periodic table you can click on; it was easily viewable in the mobile version of the article. This would be great when wanting to include interdisciplinary components or when reaching students whose interests include poetry. Students could be instructed to devise their own haiku for an element using properties that are specific to that element.
Encouraging and Supporting Community of Effort
The July 2017 issue of the Journal of Chemical Education is now available online to subscribers. Topics featured in this issue include: artificial photosynthesis; developing laboratory skills through technology; using videos to enhance learning; smartphones in the laboratory; 3D printing as a teaching resource; exploring and understanding structure; making chemistry connections; research on inquiry; from the archives: elephant's toothpaste.
Every LED light has a "band gap". Electrons are pushed into an empty orbital which is negative and then the positive end of the circuit attracts the electrons. As they go down in energy through the band gap, they emit light. The larger the band gap, the more energy, the smaller the wavelength and the closer to the "blue" end of the spectrum. So, the key is to try to control the band gap and thus control the color of light.
Our new administrative team now strongly encourages all core content teachers to provide a summer assignment to prepare students for the first day of school. Outside of the summer reading for literature classes, we’ve never done this. I see the potential for class time-savings and improvement of student understanding. Will the students see the possibilities? What should I assign? Is it realistic to expect next year to begin differently?
Have you ever wondered what is the theoretically largest possible value for the atomic number of an element? Using some introductory physics and algebra, you can get your students thinking about this idea.
I love the periodic table. I love the order, the stories, the trends and patterns, the people who made it. I love how it can be used. I love that it is the ultimate cheat sheet for a scientists or a student taking chemistry. I love the different types of periodic tables that exist. My love for this table is pretty evident. I have four periodic table ties and a periodic table bow tie. My wife went to Florida for a week to take care of her sick mother and while she was gone, I bought a periodic table shower curtain. I learned two things pretty quickly. Eight year old boys can't keep secrets (my son specifically) and as much as my darling wife loves me, she drew the line on the shower curtain. It was her or the shower curtain. So, I took it to school and tried to put it in the one place that made sense...next to the safety shower.