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Students' scales are below. They generally used shoulder strap and paper glasses or plates.

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They made the calculations in algebraic expressions as using scales. There is an example video below.

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The student calculated for x=10, 3x+1=? They used base ten blocks and ten for unknown number. Blocks refering algebraic expressions put in one scale. Until balancing, the numbers were put into the other scale one by one. Then, answer is 31 in this question.

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Other students tried and get the right result as balancing. Examples are below.

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After pre-testing and watching the presentation on the scale, students used cardboard, wood and plastic to prepare their scales models.

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And then the students used the scale to solve some of the accelerators.

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The students enjoyed this beautiful experience and tried to pass on the experience to the rest of the students.

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An enriching experience that linked reality with mathematics, the student designed the scale and applied concrete experiments to transfer it to algebra mathematics by solving equations

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Experience design

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Third activity Almustada mixed secondary school

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The students linked the variable to one of the scales that contain the total parts, and the pieces on the other pan to obtain the value of the variable, then proceeded to solve the equations in an abstract way.

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Students designed their scales by using shoulder strap, paper/plastic glasses or bottom of plastic bottles. Afterwards, they balanced their scales by using beans and some other objects. For example, an eraser was balaced with 30 beans. Then other objects were balanced with beans. Next, bean values were used like natural numbers.

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“Cebirsel ifadenin değerini değişkenin alacağı farklı doğal sayı değerleri için hesaplar” kazanımı için terazi tasarlayıp bilinmeyen değerler terazi yardımıyla bulduk.

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Manisa Atatürk Secondary School_3. STEM Aktivity_Scales

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Manisa Atatürk Secondary School_3. STEM Aktivity_Scales

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Manisa Atatürk Secondary School_3. STEM Aktivity_Scales (1)

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ŞEHİT CEMAL DEMIR AIHL3.Etkinligimiz  TERAZI PROJE: İnterdisciplinary in Mathematics Approch 7 STEM Activity

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ŞEHİT CEMAL DEMIR AIHL3.Etkinligimiz  TERAZI PROJE: İnterdisciplinary in Mathematics Approch 7 STEM Activity

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Cebirsel ifadenin değerini değişkenin alacağı farklı doğal sayı değerleri için hesaplar. Yerine koyma metodu çalıştık terazilerimizi hazırladık.

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Şehit Cemal Demir AIHL Third Activity: SCALES⚖️