I have written in the past (click here and here) about my transition from formal lab reporting to the use of Google Slides as a student form of reporting lab work.
Today I sat down to begin the arduous process of finalizing all fall semester grades for my sophomore chemistry class and the benefit of using Google Slides their lab reporting format was clearly evident!
My final "stack of papers" to grade was a shared folder full with our final lab practical reports: a group experiment where students determined the optimal H2-O2 ratio to fill a 2L bottle fo for maximum product upon ignition.
Not only was I able to grade each project directly from my phone, but embedded video of procedures, screenshots of calculations, and clear images of laboratory procedures made for a meaningful assessment process.
MORE IMPORTANTLY, the process of student creation and curation of their work using a Google Slide template (click here for the one used in this activity), was fluid, easy, and put the learning, rather than the reporting, at the forefront.
Below is an embed of one group's "report".
I love teaching with manipulatives.
Whether it be scotch tape, thumbtacks, bubbles, hula hoops, balloons, cardboard, or magnets, physical objects can assist greatly in making that which cannot see, tangible.
In chemistry class specifically, one of the most difficult concepts for students to grasp is the concept of Ionization Energy.
Understood as the minimum amount of energy required to remove an electron, conceptually understanding the pull that an atom's positively charged nucleus has on the surrounding electrons is an important foundation for understanding a myriad of other concepts in chemistry.
Given that a solid understanding of Ionization Energy requires an ability to visually abstract what is happening at the atomic level, it is of no surprise that students struggle with this concept.
Below is a video of great manipulative I have been using to help students better understand Ionization Energy.
By using one magnet as the positively charged "nucleus", another magnet, wrapped in tape and attached to a rubber band as an electron, and cardboard as various energy levels "shielding" the outer electrons from the nucleus, students can easily model the strength of nuclear pull qualitatively (how "hard" it is to remove) and quantitatively (how "far" you can pull the rubber band).
Additionally, by adding cardboard layers (energy levels), the relationship between the distance an electron is from the nucleus and the associated Ionization Energy is easily modeled. Click here (scroll to #14) for an example of how I structured this manipulative in the form of a lesson in my chemistry class this year.
Recently I stumbled upon a series of videos called "5 Levels of Difficulty". In each video an expert explains a difficult concept in 5 levels of increasing complexity:
I was inspired by this video series for a few reasons. First, it reminded me how explaining a difficult concept to a novice and expert audience simultaneously requires deep conceptual knowledge and how listening to such an explanation helps to build simultaneous conceptual and mechanical knowledge of a concept. Second, it motivated me to reimagine how I assess my students.
Keeping the above in mind, for our unit on Cellular Respiration in my freshman Biology course, rather than assign a traditional topic exam, I decide to create a variation of the 5 Levels of of Difficulty videos shown above that will serve as the assessment for this topic. In short, students will create similar videos explaining Cellular Respiration at 3 rather than 5 levels of difficulty.
I have embedded a document below that explains the intricacies of the assignment. Click here to view the spreadsheet where student "3 Levels of Difficulty" scripts and videos will be collected.
When reading the research on Curiosity, Involuntary Curiosity is of particular interest to us teachers.
Defined by Loewenstein (1994) as curiosity that "...arises spontaneously as a result of a curiosity inducing stimuli", it isn't difficult see how honing the art of curating such moments is a powerful lesson planning tool.
Specifically, editing a video to reveal only a specific portion of a clip is a useful technique.
Often times a powerful video, if showed in its entirety, can simultaneously engage AND demotivate students by "inducing" curiosity, while also explaining the content that underlies the phenomena.
Rather than showing the entire video, the goal is to strategically curate the perfect portion of a video clip to tunnel students into asking the question you want them to ask.
To intentionally withhold the perfect amount of information.
Below are a few examples from the past two weeks in my chemistry class (note: videos are downloaded using savefrom.net and trimmed using Quicktime)
If you are like me as a science teacher, you simultaneously live the acronym "STEM" and are exhausted by its overuse in nearly every blog, set of state standards, or professional development seminar that comes to town (Full disclosure: I often facilitate those seminars).
That being said, the more I dive into the world of Robotics (second year as an FRC Mentor and long time Summer Science Camp facilitator), the more potential I see in leveraging that which we often write off as "trendy, and that which we hold dear.
Tools common to enrichment programs (MakeyMakey, Arduino, MicroBit etc.) can potentially be powerful tools in my/our Biology and Chemistry classes during the school year, while also engaging students in a disciplines they would not normally see embedded in traditional physical and life science courses.
Below are links 5 activities I have done, or plan to do, that merge coding/electronics and biology/chemistry. Enjoy!
#1: MakeyMakey Interactive Eukaryotic Cell
#2: Lego Mindstorm Natural Selection Simulation
#3: Modeling States of Matter with the MicroBit
#4: Drop Counter Hack with MakeyMakey
#5: Arduino Conductivity Probe