【7A文】IMC国际数学竞赛小菁英英文培训营.ppt

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1、IMC國際數學競賽小菁英~英文培訓營英文講師:李靜儀老師1-1正負數整數integer正整數positiveinteger負整數negativeinteger分數fraction正分數positivefraction負分數negativefraction數線numberline交換律commutativelaw分配律distributivelaw倒數reciprocal1-2絕對值大於morethan小於lessthan絕對值absolute相反數oppositenumber線段segment距離distance範圍range線段中點mid-pointofalinesegment1-3指數

2、律指數indexnumber平方square立方cube科學記號scientificnotation底數basenumber指數律Indexlaw1-4因數與倍數因數factor公因數commonfactor最大公因數greatestcommonfactor倍數公倍數commonmultiple最小公倍數leastcommonmultiple輾轉相除法divisionalgorithm短除法shortdivision1-5質數與合數質數primenumber合數compositenumber質因數qualityfactor因數分解factorization標準分解式standarddeco

3、mposition互質coprime1-6分數分數fraction正分數positivefraction負分數negative最簡分數themostsimplefraction通分commondenominator擴分expansionofafraction約分reductionofafraction1-7一元一次方程式一元一次方程式simpleequation括號小括號parenthesis中括號bracket大括號brace符號symbol未知數unknownnumber代數algebra恆等式identity2-1二元一次方程式二元一次方程式duallinearequation聯立方

4、程式simultaneousequations解一組解onesolution多組解Infinitelysolutions無解nosolution加減消去法eliminationbyadditionorsubtraction代入消去法eliminationbysubstitution2-2平面直角座標座標平面coordinateplanes軸線axisX軸XaxisY軸Yaxis座標coordinate直線方程式linearequation交點pointofintersection象限quadrant2-3比例簡單整數比simpleintegerratio比例中項proportionalme

5、an連比continuesproportion正比directproportion反比inverseproportion前項antecedent後項consequent2-4函數函數function常數函數constantfunction線型函數linearfunction變數variable函數圖形graphofafunction繪圖drawing應變數correspondingtothevariables自變數independentvariables2-5不等式不等式Inequality大於或等於greaterthanorequalto小於或等於lessthanorequalto遞移律

6、transitivelaw超過exceed未滿under以上above以下below3-1乘法公式二項式乘法公式binomialtheorem完全平方和thesquaresummationoftheformula完全平方差thesquaredifferenceoftheformula平方差squaredifference分配律distributivelaw3-2多項式係數coefficient升冪排列ascendingpower降冪排列descendingpower多項式polynomial常數項constantterm零次多項式polynomialofdegreezero分離係數sepa

7、rationfactor同類項similarterms3-3平方根被開方數radicand根號radical開方extractionofaroot最簡根式simplestradical開方法extractionofroot十分逼近法Euclidianalgorithm有理化rationalized3-4勾股定理勾股定理Pythagoreantheorem股share斜邊hypotenuse面積area近似值approxi