Mr. Lee (李老師) (@DLee_Math) profile picture

Public School Mathematics Teacher • Cross Country Coach • Track & Field Coach • Masters in Economics & Education Policy • Representation Matters

Princeton, NJ
Joined November 2013
Photo by Mr. Lee (李老師) (@DLee_Math)Photo by Mr. Lee (李老師) (@DLee_Math)Photo by Mr. Lee (李老師) (@DLee_Math)Photo by Mr. Lee (李老師) (@DLee_Math)Photo by Mr. Lee (李老師) (@DLee_Math)Photo by Mr. Lee (李老師) (@DLee_Math)Photo by Mr. Lee (李老師) (@DLee_Math)Photo by Mr. Lee (李老師) (@DLee_Math)Photo by Mr. Lee (李老師) (@DLee_Math)Photo by Mr. Lee (李老師) (@DLee_Math)
Perhaps we should shift our focus on benchmarks for student success from test scores to behavior. Test scores fail to capture the impact of relationships teachers form with students. Meaningful relationships alter student behavior, and thus, achievement. (Jackson, 2019).
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Seems like just yesterday Zach was sitting in my 6th grade math class and running middle school track - so incredibly proud of this guy! – at Philadelphia, PA
Congratulations to 200 and 400 meter school record holder Zach Della Rocca, who will continue his academic and athletic career with @PrincetonTrack in the Fall! 🎉 🥳 💪 Go Zach and #GoTigers!! @njmilesplit @lambo2126 @HSSsports @BrianDzbenski
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PMSXC Boys & Girls wrap up their season with both teams finishing in the top 3 at the State Meet! Incredibly proud of this group for how hard they’ve worked and grown this season!
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PMSXC finished their regular season undefeated against Grover and Lawrence today, Boys’ and Girls’ Teams both 10-0 🎉
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PMSXC Boys & Girls beat Pond Road & Fisher to continue their streak 8-0 each!
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PMSXC continues their Fall 2022 Streak of 4-0, beating Kreps on both the boys’ and girls’ sides!
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PMSXC starts the 2022 season strong this week! Boys and Girls’ Teams both to a 3-0 start!
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Half-Marathon #️⃣1️⃣8️⃣☑️ wanted to run sub 1:31:00 and managed a 1:30:44!
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Some cracked their first egg today. Some washed their first dish today. Some used their first mixer today. Some made their first cookie dough today. Some made a new friend today. Everyone problem-solved as a team to create a tasty product! Recipe 😈 youtu.be/4hm-v62Y-Eg
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I’m excited to announce that I’m officially running the 2022 NYC Marathon in support for @PencilsOfPromis on November 6th! If you’d like to help support me in this endeavor, you can donate using this link: fundraisers.hakuapp.com/dani…
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All-Time Girls’ School Record of 9.4 seconds smashed with a time of 8.9 in the 55m hurdles today! Both Boys and Girls Teams remain undefeated at 4-0 for the season! Go Tigers!
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¡Me encantó conectarme con las familias anoche!
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Omg I know @MsBernal_ !!! She’s the best!!!
Thank you @NJSCA for having us this morning. I’m so thankful for the strong woman of influence who have supported me. #payitforward
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Half-Marathon #17 ☑️ Finished #324 out of 11,000+ to PR with a time of 1:34:23 (avg 7:12 pace). Last year this time I couldn’t walk without pain let alone run for more than 30 seconds. It’s been a long recovery and a lot of work, but it sure feels good to be back!
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As always, had a blast running the Princeton 5k! Running side by side with a bunch of my former runners/students is a special feeling and the community was super supportive. New personal best of 19:41 ~ Excited for our upcoming Track & Field season!
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Sawyer’s using his mathematical knowledge of quadratic functions to optimize velocity, height, vertex, and landing- I just know it
Sophomore Sawyer Quallen with a big PR of 42-6 at Meet of Champions this evening! Congrats Sawyer and #GoTigers!
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Wow, that’s amazing! So cool to see all 6 PMSXC Runners crushing it on the mats as well!
MCT update 106 Cole Rose 1st Place 🥇 113 Ava Rose 4th Place 120 Tyler Ehee 5th Place 126 Scratched 132 Marty Brophy 2nd Place 🥈 138 Harry Ehee 4th Place 144 Basil Rieger 6th Place
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Year 9 of variable brownies! One for each child with the first letter of their first name- stressing the importance that variables change and can be so many different things- just like themselves. They will always continue to change and be whatever they want. #education #teacher
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So happy to see this! 2 amazing individuals. Feels like yesterday they were sitting in my math class- time flies, looks like they do too!
Ada Metaxas is your 2022 Mercer County Triple Jump champion with a personal best of 34-11!! Ada was also fourth in the long jump. Sawyer Quallen placed fourth in the boys triple jump as well. Congrats to all of the Tiger jumpers who competed this evening! #GoTigers!
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There’s something satisfying about always finding another perspective of looking at a problem, formula, theorem. I was today years old when I learned this way of proving the Pythagorean Theorem. #education #newyears #nonprofit youtu.be/dJLjejj9waQ – at Philadelphia, PA
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