Math topic · United States
Telling time
Reading analog and digital clocks and working out how long things take.
Lessons
Grade 3Math
Measure It: Length, Time and Mass in the Real World
Whose foot is the right ruler? How long is a minute, really? Is a kilogram of feathers lighter than a kilogram of rocks? Four lessons where students measure length, time and mass with real tools, then use their own data to settle an argument.
Grade 6 to Grade 8Science
Natural Selection: How Living Things Change Over Time
A peppered moth hunting game over four generations, the Grants' real Galápagos finch data from the 1977 drought, whale fossils in rock-layer order with a forelimb bone comparison, and five case stations on selective breeding and antibiotic resistance. Every lesson runs on printed sheets alone: no materials to buy.
Printable worksheets
Online practice
- Tell time to the hour Grade 1
- Tell time to the hour and half hour Grade 1
- Write times in words and digits Grade 1
- Time an hour later Grade 1
- Tell time to the nearest five minutes Grade 2
- Write quarter past, half past and quarter to Grade 2
- Minutes from the minute hand Grade 2
- Count coins to 1 dollar Grade 2
- Count coins and bills Grade 2
- Value of coins Grade 2
- Cents in coins of the same kind Grade 2
- Make change within 100 cents Grade 2
- Add and compare prices in cents Grade 2
- Read a clock to the minute Grade 3
- Write the time: minutes to the hour Grade 3
- What time will it be? Minutes later Grade 3
- What time was it? Minutes earlier Grade 3
- Elapsed time in minutes Grade 3
- Find the start time Grade 3
- Elapsed time word problems: 2 hours or less Grade 4
- Elapsed time word problems: 4 hours or less Grade 4
- Elapsed time: train and bus times (24-hour clock) Grade 4
- Elapsed time on the 24-hour clock: up to 5 hours Grade 4
- Elapsed time with a.m. and p.m.: up to 5 hours Grade 4