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− | =='''Some interesting exchanges from the STF mailing forum.'''==
| + | '''Some interesting exchanges from the STF mailing forum.''' |
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| To join the forum, visit this group [http://groups.google.com/group/mathssciencestf?hl=en-US here]. | | To join the forum, visit this group [http://groups.google.com/group/mathssciencestf?hl=en-US here]. |
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− | === Square root of a number ===
| + | [[Image:one.jpg]] |
− | The squre root of whole number is always less than the that square number ( ex; sqare root of 25 is 5, 36 is 6 etc) but in decimal it is reverse (ex; sqare root 0.8 is o.89) what is the reason? | + | |
| + | '''Square root of a number''' |
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| + | The squre root of whole number is always less than the that square number ( ex; sqare root of 25 is 5, 36 is 6 etc) but in decimal it is reverse (ex; sqare root 0.8 is o.89) what is the reason? Shared by Suchetha SS, GHS Thyamagondulu. |
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| + | [[http://karnatakaeducation.org.in/KOER/en/index.php/Maths:_From_the_forum#Square_root_of_a_number Read More]] |
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| + | '''CarMetal is a Geogebra like free software''' |
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| + | A description of another graphic tool like Geogebra. Shared by Tharanath Achar, GPUC Belthangady. |
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| + | [[http://karnatakaeducation.org.in/KOER/en/index.php/Maths:_From_the_forum#CaRMetal_is_a_Geogebra_like_free_software Read More]] |
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| + | '''Math teaser about an arithmetic progression''' |
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| + | P th term of an AP is Q and Q th term of an AP is P . Then find PQ th term ?....Shared by Mallikarjun Sudi, GHS Yelheri and Sneha Titus, APU. |
| + | [[http://karnatakaeducation.org.in/KOER/en/index.php/Maths:_From_the_forum#P_th_term_of_an_AP_is_Q_and_Q_th_term_of_an_AP_is_P_._Then_find_PQ_th_term_.3F Read More]] |
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| + | '''Pi Day''' |
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| + | Which day is Pi Day? |
| + | [[http://karnatakaeducation.org.in/KOER/en/index.php/Maths:_From_the_forum#Which_day_is_Pi_Day_.3F Find out]] |
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| + | '''Trigonometry using Geogebra''' |
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− | Let us take ex : sq root of 0.16 is 0.4 but it is greater than 0.16
| + | Basics of Trigonometry using Geogebra, lesson shared by Radha Narve, GHS Begur. |
− | Square rooting 16/100 = 4/10. The value of denominator is larger than numerator.. when u square root it, (square root16) / (square root100)
| + | Click [[http://karnatakaeducation.org.in/KOER/en/index.php/Maths:_From_the_forum#Trignometric_Ratios here]] to read more. |
− | Thus making the denominator smaller at the same time..ex : numerator: square root16 = 4; denominator: square root100 = 10
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