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Many #machinelearning algorithms, whether supervised or unsupervised, make use of distance measures.
Take k-NN for example, a technique often used for supervised learning. As a default, it often uses euclidean distance.
By itself, a great distance measure.
Knowing when to use which distance measure can help you go from a poor classifier to an accurate model.
Study: https://towardsdatascience.com/9-distance-measures-in-data-science-918109d069fa
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I have a little variety in my bell ringers but have them consistently every day. It is either questions over past content, vocabulary, or on Friday we do a journal type question .
I start every day with 20 minutes of sustained silent reading. Students get to choose their books for the entire year but have to hit on nine different genres.
I confer with my readers everyday during that time! Check in with them, let them tell about their books, and help them pick out new ones if they need it
So in my class the students each have a folder—sorted out by classes .. in the folder are monthly bell ringers. I use old NYS test questions —that align to what is being taught. The questions are varied— as in short answer responses and/or multiple choice questions. It only takes about 2 min to complete and then a few min after to go over. At the end of each month I quickly grade for participation. For me this works.
I enjoy using EdPuzzle to introduce content through a video that you can incorporate questions into
Towards the end of the year last year I started doing number and logic puzzles (sudoku or other type puzzles) it gets their brains going and they liked doing them.
I teach science and we do 1 or 2 vocabulary words in a four square every day. It’s very consistent and helps me pre-teach the vocabulary!
Journal prompt for ELA and review problems for math. I reach both in a resource setting.
I consistently use a Problem of the Day, POD. When students enter they write down the problem in their notebook and answer it. This POD gives me either diagnostic, any precious knowledge, or formative (did they learn) data that I use to proceed with my lesson. While students are completing their POD, I’m doing the regular housekeeping. I then check and track their answers.