Maths topic · Ireland
Telling time
Reading analog and digital clocks and working out how long things take.
Lessons
Third ClassMaths
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.
Sixth Class to Second YearScience
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.
Online practice
- Tell time to the hour First Class
- Tell time to the hour and half hour First Class
- Write times in words and digits First Class
- Time an hour later First Class
- Tell time to the nearest five minutes Second Class
- Write quarter past, half past and quarter to Second Class
- Minutes from the minute hand Second Class
- Count coins to 1 dollar Second Class
- Count coins and bills Second Class
- Value of coins Second Class
- Cents in coins of the same kind Second Class
- Make change within 100 cents Second Class
- Add and compare prices in cents Second Class
- Read a clock to the minute Third Class
- Write the time: minutes to the hour Third Class
- What time will it be? Minutes later Third Class
- What time was it? Minutes earlier Third Class
- Elapsed time in minutes Third Class
- Find the start time Third Class
- Elapsed time word problems: 2 hours or less Fourth Class
- Elapsed time word problems: 4 hours or less Fourth Class
- Elapsed time: train and bus times (24-hour clock) Fourth Class
- Elapsed time on the 24-hour clock: up to 5 hours Fourth Class
- Elapsed time with a.m. and p.m.: up to 5 hours Fourth Class