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https://www.didax.com/apps/number-line/

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https://www.coolmath4kids.com/manipulatives/number-line

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Number Line is an online mathematical manipulative that helps students develop greater flexibility in mental arithmetic as they actively construct mathematical meaning, number sense, and understandings of number relationships.

Our Number Line also helps students learn to tell time, by showing how numbers intervals on a line correspond to minute intervals on a clock.

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Number Line | Manipulatives | Coolmath4Kids

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Number Line is an online mathematical manipulative that helps students develop greater flexibility in mental arithmetic as they actively construct mathematical meaning, number sense, and understandings of number relationships. Our Number Line also helps students learn to tell time, by showing how numbers intervals on a line correspond to minute intervals on a clock.

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https://www.youtube.com/watch?v=i6lfVUp5RW8

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Scientific notation examples | Pre-Algebra | Khan Academy

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https://www.youtube.com/watch?v=cLP7INqs3JM

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Introduction to rational and irrational numbers | Algebra I | Khan Academy

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https://www.youtube.com/watch?v=XZRQhkii0h0

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Introduction to exponents | Pre-Algebra | Khan Academy

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Oh, Yikes! History's Grossest, Wackiest Moments
Masoff and Sirrell (2006)
In this picture rich reference book, the authors describe important historical events and people with facts that are interesting to middle schoolers (Aztec Antics, Cruel Constructions, Humongous Hoaxes) Selecting a topic such as brushing teeth the author describes how this was handled across all of history- an opportunity for timeleines that include dates sucha s 2500 B.C Students can create a timeline that is proportionally accurate to describe the events related to their topic. This lesson involves integers, measuring, proportional reasoning, and fractions.

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The Number Devil
Full of humor and wit, the number devil presents a collection of interesting ideas about numbers. Robert, a boy who hates mathematics, meets up with a crafty number devil in each of 12 dreams (one per chapter). On the fourth night;s dream, Robet learns about infinitely repeating decimals and the "rutabaga of two" (the square root of two), providing a connection to rational and irrational numbers

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Why Pi? And Go Figure!
Ball (2005, 2019, 2016)
These two nonfiction books offer interesting facts on a range of mathematical topics, including very big numbers. Why Pi? uses powers of 10 to describe the galaxy Go Figure! Explores exponential growth connected to historical and classic problems

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Swanson, P. E (2010). The interesction of language and mathematics. Mathematics Teaching in the Middle School, 15 (9), 516-523
Weaving in many strategies to support ELs, the auther shares how she engaged students in real contextsto learn integer operations. Visuals and language support are used to ensure students understand

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Dupree, K. M (2016). Questioning the order of operations. Mathematics Teaching in the Middle School, 22 (3); 152-159
Mnemonics perpetuate misconceptions. This article provides examples of student misconceptions and describes a more effective way to teach this critically important topic