Media Center STEM Lessons Pre-Algebra Factors & Multiples Multiples & LCM Factors & GCF Fractions Defined Comparing Fractions Simplifying Fractions & Equivalent Fractions Fraction Arithmetic Real Numbers Decimals Converting Decimals into Fractions Decimal Addition & Subtraction Decimal Multiplication Decimal Division Ratios Prev 1 2 3 Next STEM Lessons Geometry Geometry Basics Angles Triangles & Quadrilaterals Polygons Perimeter & Area Area & Perimeter of a Composite Rectangle Interior & Exterior Angles of Polygons Circumference & Area of Circles Volume & Surface Area Volume of Prisms & Pyramids Volume of Cones & Cylinders Naming, Classifying, & Measuring Angles Prev 1 2 Next STEM Lessons African Math In Afrikan math we start with the wrong answer... In Afrikan math all fractions are 1 and all multiplicationi is by 2 (part I) In Afrikan math all fractions are 1 and all multiplication is by 2 (part II) Prev 1 Next STEM Lessons Water, Energy & Environment Off Grid Solar PV Assembly Intro to Rainwater Harvesting DIY Drip Irrigation Intro to Water Resources Engineering & Management Great Dismal Swamp - Hydrology & Hoodoo Series & Parallel Circuits in PV Arrays Prev 1 Next