Ratios and Percentages
Ratios and percentages are the language of comparison. A 20% tip, a 3:1 solution, a 60% chance of rain — these ideas appear everywhere. Students who can move fluidly between fraction, decimal, and percent forms, and who understand ratio as a relationship, are equipped for real-world mathematics.
What students explore
Ratios and percentages are the language of comparison. A 20% tip, a 3:1 solution, a 60% chance of rain — these ideas appear everywhere. Students who can move fluidly between fraction, decimal, and percent forms, and who understand ratio as a relationship, are equipped for real-world mathematics.
Key ideas
Represent and interpret ratios using part-to-part and part-to-whole thinking. Convert between fractions, decimals, and percentages. Calculate a percentage of a whole. Solve problems involving discounts, taxes, and tips.
Putting it together
Apply these ideas through hands-on activities, guided practice, and real-world problems.