US edition · 8th grade
8th grade maths: Common Core coverage
28 of 28 Common Core standards for 8th grade maths are practised in the app. Each one is listed with the skills that practise it. A skill can serve standards from more than one grade, and children can work at a different level in each subject.
Standards and the skills that practise them
- 8.NS.A.1
- Repeating decimals to fractions: Can convert a repeating decimal to a fraction.
- Rational and irrational numbers: Can tell whether a number is rational or irrational.
- 8.NS.A.2
- Estimate square roots: Can place a square root between two whole numbers and estimate it to one decimal place.
- 8.EE.A.1
- Laws of exponents: multiplying and dividing: Can multiply and divide powers of the same base by adding or subtracting the exponents.
- Zero and negative exponents: Knows that a⁰ = 1 and can work out a negative power as a fraction.
- 8.EE.A.2
- Powers and roots: Can work out squares, cubes, higher powers and square roots.
- 8.EE.A.3
- Compare numbers in scientific notation: Can compare and order numbers written in scientific notation.
- 8.EE.A.4
- Multiply and divide with scientific notation: Can multiply and divide two numbers given in scientific notation.
- Write a number in scientific notation: Can write a large or small number in scientific notation, a × 10ⁿ.
- Write a scientific notation number as an ordinary number: Can convert a number written in scientific notation back into an ordinary number.
- Add and subtract in scientific notation: Can add or subtract two numbers given in scientific notation.
- 8.EE.B.5
- Straight-line graphs y = mx + c: Can find points on a line from its equation and read off the slope and intercept.
- 8.EE.B.6
- Straight-line graphs y = mx + c: Can find points on a line from its equation and read off the slope and intercept.
- Slope between two points: Can find the slope of the line joining two coordinates.
- 8.EE.C.7
- Equations with unknowns on both sides: Can solve an equation with the letter on both sides.
- Form and solve an equation from a word problem: Can turn a word problem into an equation and solve it.
- 8.EE.C.8
- System of equations by elimination: Can solve a pair of linear system of equations by adding or subtracting them.
- System of equations by substitution: Can solve a pair of system of equations by substituting one into the other.
- 8.F.A.1
- Function notation: evaluate f(x): Can evaluate f(x) for a given value of x.
- What is a function?: Can tell whether a rule or a set of pairs is a function.
- 8.F.A.2
- Compare two functions: Can compare two functions when one is an equation and the other is a table.
- 8.F.A.3
- Straight-line graphs y = mx + c: Can find points on a line from its equation and read off the slope and intercept.
- 8.F.B.4
- nth term of a linear sequence: Can find the nth term rule of a linear sequence and use it.
- Slope between two points: Can find the slope of the line joining two coordinates.
- Equation of a line through a point: Can find the equation of a line given its slope and one point on it.
- 8.F.B.5
- Describe a graph in words: Can match a graph to a story and say whether it is increasing or decreasing, linear or nonlinear.
- 8.G.A.1
- Rotations and reflections with coordinates: Can find the image of a point after a rotation about the origin or a reflection in y = x.
- 8.G.A.2
- Congruent figures and rigid motions: Can name the slide, flip or turn that takes one figure onto another, and knows these keep figures congruent.
- 8.G.A.3
- Translations: Can describe a movement left/right and up/down and find where a point ends up.
- Reflect a point: Can find where a point ends up after reflecting in a vertical or horizontal mirror line.
- Translate a point: Can find the new coordinates of a point after a translation.
- Reflect and translate in four quadrants: Can reflect a point in an axis or translate it, in any quadrant.
- Rotations and reflections with coordinates: Can find the image of a point after a rotation about the origin or a reflection in y = x.
- Dilation from the origin: Can dilate a point by a scale factor with the origin as the center.
- 8.G.A.4
- Dilation from the origin: Can dilate a point by a scale factor with the origin as the center.
- Similar shapes: Can use a scale factor to find a missing length or area in similar shapes.
- 8.G.A.5
- Angles in a triangle: Can find the missing angle in a triangle.
- Angles in parallel lines: Can find alternate, corresponding and co-interior angles.
- Interior and exterior angles of polygons: Can find the angle sum of any polygon and the exterior angle of a regular one.
- Multi-step angle problems: Can combine angle facts, such as the exterior angle theorem, to solve a problem.
- 8.G.B.6
- Is it a right triangle?: Can use the Pythagorean theorem backwards to test whether a triangle is a right triangle.
- 8.G.B.7
- the Pythagorean theorem: the hypotenuse: Can use the Pythagorean theorem to find the length of the hypotenuse.
- the Pythagorean theorem: a shorter side: Can use the Pythagorean theorem to find the length of a shorter side.
- 8.G.B.8
- Distance between two points: Can find the distance between two coordinates using the Pythagorean theorem.
- 8.G.C.9
- Volume and surface area of a cylinder: Can calculate the volume and curved surface area of a cylinder.
- Volume of cones and spheres: Can calculate the volume of a cone and of a sphere.
- 8.SP.A.1
- Scatter plots and correlation: Can say whether a scatter plot shows positive, negative or no correlation.
- 8.SP.A.2
- Judge a line of fit: Can choose the straight line that fits a scatter plot best and say why a line fits badly.
- 8.SP.A.3
- Line of best fit: Can use the equation of a line of best fit to estimate a value.
- 8.SP.A.4
- Two-way tables: Can complete and read a two-way table.