Inequality Symbols, Variables & Number Lines

Interactive macro-enabled MS-Excel spreadsheet. Contents: Compare the heights of two sets of tiles using inequality symbols. Compare two ±ve integers or decimals using inequality symbols. Compare two ±ve decimal temperatures using inequality symbols. Compare two fractions, decimals or %s using pies & inequalities. Compare two lengths or weights or volumes using inequalities. Evaluate & compare proportions of an amount using inequalities. Write inequality expressions involving n or another suitable letter. Describe linear inequalities on a number line in one variable n. Represent linear inequalities on a number line in one variable n. Solve & represent linear inequalities in one variable n (1, 2, 3-step). Solve & represent linear inequalities in one variable n (both sides). Solve & represent simple quadratic inequalities in one variable n. Solve, factorise & represent quadratic inequalities in one variable x.