Table of Contents

1. Fractions and Decimals
   1. Fractions and Decimals
   2. Fraction, Decimal, and Percent
2. Adding and Subtracting Integers
   1. Quiz: Adding Integers
   2. Quiz: Adding and Subtracting Integers
3. Construction
   1. Congruent Angle: Construction
4. Surface Area
   1. surface area of a cube / Oberfläche eines Würfels
   2. Surface area of cube/cuboid edited
5. Averages
   1. Mean, Median, Mode, Range
   2. Mean, Median, Mode, and Range
6. Angles properties
   1. Corresponding Angles
   2. Alternate Angles
   3. Angles on Parallel Lines
   4. Alternate angles on parallel lines
   5. Cointerior Angles
7. Ratio and Proportion
   1. Equivalent Ratios
   2. Is it a proportion?
   3. Simplifying ratios
8. Percentages
   1. Part, Whole and Percentage
   2. Percent Visualization
   3. Percent Game