Volume 66 Number 705 September – December 2021

Published: 2021-12-25

Full Issue

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Academic Article

Middle & High School Mathematics: Conic Section, Really? 1

Jumpot Intrakul

1 - 17

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A Ratio on The Cut Line of Butterfly’s Wings on A Circle

Annop Kaewkhao, Warachat Khuntong

18 - 24

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Integer Ratios of Some Consecutive Series

Sesthawuth Petchkaew, Supawadee Prugsapitak

25 - 31

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Research Article

The Learning Management with STEM Education Concept on Statistics 1 for Grade 7 Students

Weeraya Thoophom, Ponpitak Hembasat, Wannapol Pimpasalee

32 - 51

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Conditions of Digit in The Places of Positive Integers Divisible by 7

Thanatyod Jampawai

52 - 64

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