Science and Nature have a lot in common regarding math concepts. The Golden Mean is a number that appears in both science and nature. Videos can be found online that explains this phenomenon. Search for "The Golden Mean."
Concept 1 covers place value, signed numbers, symbols, absolute values, adding and subtracting integers, problem-solving, multiplying and dividing integers, exponents, and order of operations.
Covers perimeter and area of squares, rectangles, and parallelograms.
Concept 3 covers signed fractions, equivalent fractions, division of signed fractions, writing fractions in lowest terms, divisibility rules, and complex fractions.