Factors, multiples, GCF and LCM
8 lessonsPrimes, prime factorization and why it is unique, and the greatest common factor and least common multiple found two ways.
Dividing fractions
5 lessonsWhat it means to divide by a fraction, why dividing equals multiplying by the reciprocal, and finding a whole from a known fraction of it.
Decimal fluency
5 lessonsMulti-digit decimal arithmetic with the standard algorithms brought to fluency, checked by estimating with friendly numbers.
Ratios
8 lessonsA ratio compares two quantities, and equivalent ratios are found and shown with tables, double number lines and tape diagrams.
Rates and unit rates
5 lessonsA rate is a ratio of different units; the unit rate makes rates comparable and converts units, speeds and prices.
Percent
4 lessonsA percent is a rate per hundred; convert among fractions, decimals and percents and find a percent of a quantity.
Integers and rational numbers on the number line
8 lessonsNegative numbers extend the number line; place, compare and order rational numbers and read absolute value as distance from zero.
The coordinate plane in four quadrants
3 lessonsPlot and read points in all four quadrants and use coordinates to solve problems.
Exponents and expressions
9 lessonsWhole-number exponents, and expressions with variables written from words, named by their parts and evaluated.
One-step equations and inequalities
7 lessonsA solution makes an equation true; solve one-step equations with the properties of equality, graph simple inequalities, and relate two variables.
Area, surface area and volume
13 lessonsArea of parallelograms, triangles and trapezoids by decomposing, surface area from nets, and volume as a measure of space.
Statistical questions, distributions, center and spread
12 lessonsA statistical question expects variable answers; summarize the data with mean, median and mode, and measure its spread.
Dot plots, histograms and box plots
11 lessonsDisplay numerical data, describe the shape, center and spread of a distribution in context, and choose the display that fits the question.