共同核心州立标准(美国)
Grade 8
Grade 8共有 10 项标准,每项都有对应的免费练习单。 13–14 岁
说明是我们用自己的话写的简短概述,并非官方原文。
Expressions & Equations
8.EE.A.1
Know and apply the properties of integer exponents to make equivalent numerical expressions.
现成的练习单
8.EE.A.2
Use square root and cube root symbols; evaluate square roots of small perfect squares and cube roots of small perfect cubes.
现成的练习单
8.EE.A.3
Use a single digit times a power of 10 to estimate very large or very small quantities.
现成的练习单
8.EE.A.4
Calculate with numbers in scientific notation and choose sensible units.
现成的练习单
8.EE.C.7.A
Give examples of linear equations with one solution, infinitely many or none.
这项标准暂时还没有练习单。 自己制作练习单
8.EE.C.7.B
Solve linear equations with rational coefficients, including ones that need expanding brackets and collecting like terms.
Functions
8.F.B.4
Build a function to model a linear relationship and find its rate of change and initial value.
Geometry
8.G.A.5
Use informal arguments about angle sums and exterior angles of triangles and angles made by parallel lines and a transversal.
现成的练习单
8.G.B.7
Use the Pythagorean Theorem to find unknown side lengths in right triangles.
现成的练习单
8.G.C.9
Know and use the formulas for the volumes of cones, cylinders and spheres.