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Hate Math? These Mental Tricks Will Have You Multiplying Faster Than Einstein Ever Could! Hate Math? These Mental Tricks Will Have You Multiplying Faster Than Einstein Ever Could! That's about as much math as I can handle without a calculator on a daily basis. Similar Triangles Applications Image Source: A powerful Zoom lens for a 35mm camera can be very expensive, because it actually contains a number of highly precise glass lenses, which need to be moved by a tiny motor into very exact positions as the camera auto focuses. The Geometry and Mathematics of these lenses is very involved, and they cannot be simply mass produced and tested by computer robots. Lots of effort required to manufacture these lenses results in their very high price tags. Here is a diagram showing how the zoom lens internal arrangement changes as we zoom from 18mmm wide angle to 200mm fully zoomed in: Image Source:
#TMC14 GWWG: Talking Points Activity – cultivating exploratory talk through a growth mindset activity This activity is the one I am most excited about bringing to #TMC14 and to the Group Work Working Group. My intention is to blog more about how this goes during the morning sessions. I also hope that participants will blog more about this too and contribute resources to the wiki. Exploratory talk is the greatest single predictor of whether group work is effective or not, yet most symmetrical classroom talk (peer talk) is either cumulative (positive but uncritical) or disputational (merely trading uncritical disagreements back and forth). This activity is based on Lyn Dawes’ Talking Points activity but has been adapted for use within a restorative practices framework.
Math Survey – Students I am taking Justin Lanier’s call to action from his talk “Beyond Beauty” at the Global Math Department. I posted over the weekend about the results of my survey of teachers and staff at my school. Today, I gave it to my students. The survey looked like this: Here’s what my students said: Home Page Teachers Primary Pupils Secondary Students Events and PD 14 Virtual Tools: Favorite Math Apps More and more classrooms are gaining access to technology that can be used with students. Whether you’re modeling a lesson, creating stations, or working in a one-to-one classroom, virtual tools can promote student engagement while increasing academic success. Here are some apps for iPads — along with a few other tips — that can transform your daily lessons and are definitely worth checking out! Base Ten Blocks Number Pieces is a great free app that allows every student with an iPad to have an endless number of base ten blocks at their fingertips.
Difference Between a Percentage and a Rate (as explained by medical field) Often we hear the question, "What is the difference between a percentage and a rate?" They are both calculated using a numerator and a denominator. However, the relationship between the numerator and denominator makes the difference. Percentages Indicators which use percentage are the most commonly used indicator type in healthcare. Mathematical Mindset Teaching Guide, Teaching Video and Additional Resources We have designed a Mathematical Mindset Guide to help teachers create or strengthen a growth mindset culture. This guide contains five Mathematical Mindset Practices along with links to teaching videos. The videos all show Jo and Cathy teaching middle school students. There are different stages described in each practice to help capture the journey of a mathematical mindset classroom and the evidence teachers may collect along the way for their own reflection or for discussion with colleagues. The guide has been designed for teachers to use in the process of self-reflection, or for coaches or administrators to use to encourage a mindset teaching culture.
Mr. B's Blog: I Volunteer as Tribute: The Final HSCN The arena set, the districts formed, the Capitol ready. Sounds like the beginning of the Hunger Games, doesn't it? This was the staging for the final HSCN: The Math Hunger Games. To bring you up to speed if you are not familiar with my HSCN, I hosted evenings three times a month where I instructed parents on math and reading.