Three Key Topics in Elementary School Distributive property | Distributive Property | Review on Order of Operations and Distributive Property | Practice-Distributive property | Factoring Fraction division and multiplication | Fraction division Proofs Negative numbers | Drive these three concepts home with your children, then they are good to go for middle school. Relate operations: addition […]

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## Help Our American Kids with Their Math

因材施教 yin_1 cai_2 shi_1 jiao_4 Teachers and Parents, when teaching, ought as far as possible to teach students according to their abilities. – Confucius Dedicated to my dear daughter who made me re-learn math, view the stuff in a different perspective, made me realize that she has her own way to learn math, and made […]

Read More "Help Our American Kids with Their Math"## Science: Bones and Muscles

SciLinks Body Systems Work cellStructure typesOfTissues Skin digestiveSys excretorySys protectionAgainstDisease sensesOfNervousSys skeleton movableJoints1 movableJoints2 boneStructure musclePairs typesOfMuscles Lever pullingOutANail lawOfLever threeClassesOfLevers leversInBody 上一页 下一页

Read More "Science: Bones and Muscles"## Science: Endocrine System and Reproduction

The endocrine system Vocabulary: hypothalamus pituitary thyroid – thyroxine parathyroid thymus pancreas adrenal ovaries – estrogen and progeterone testes – testoterone Male Reproductive System Male Reproductive System Female Reproductive System Female Reproductive System Release of an Egg Menstrual Cycle Hormone Change in Menstrual Cycle Egg and Sperms Early Changes in an Embryo Embryo Fetus Vital […]

Read More "Science: Endocrine System and Reproduction"## Protected: J Science 7th grade

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Read More "Protected: J Science 7th grade"## Math: Algebra 7th-8th Grade

Function Intro Functions Help our American Kids with their math Math: 1st – 6th Grade Algebra 7th-8th Grade

Read More "Math: Algebra 7th-8th Grade"## Math – Exponents

Important: Exponent (radical) is operation itself. Base and power can be any real number: rational or irrational number. Check if the bases and or power are the same when doing operations over exponents. Math_Exponents Part2 1. Special cases 2. Understanding exponential notation: Question: how are exponent related to multiplication? Question: how many zeros are in […]

Read More "Math – Exponents"## Maths – Data Descriptions

Methodology When we learn a new subject, the first step is to learn words or concepts in this subject. It is like that you need to expand your vocabulary in the field first, then to understand and use these terms / jargons to analyze and solve questions in this field. This, naming a thing, is […]

Read More "Maths – Data Descriptions"## G. Euler Circle – Complex Analysis

Complex numbers: polar coordinates Why we use radiance instead of degrees in calculus. Riemann Surfaces Square root function and the logarithm function Liouville’s Theorem Hilbert’s Nullstellensatz the Zariski-closed sets Picard’s little theorem Wegert’s book Geometric view of complex functions Real Analysis tips: proof techniques, definitions, definitions – links – proof, notations (quantifiers), Limits Cauchy Sequence: […]

Read More "G. Euler Circle – Complex Analysis"## Word Roots: S

SIGMA, tooth Sun, sing, see, star, sister, sit, stupid, sign, sum, solve sigma = sum sign sol, star = astro, aster, stell sunna – sun SOL: 太阳，唯一， 庄严 Helios – HE (helium) Solomon solarize, solarization, solarium, insolation, circumsolar, extrasolar, parasol, turnsole (sunflower) solstice = sol + stic + e = sun + stop = the […]

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