Measuring Time: Seconds and Minutes
Year 4 Mathematics Learning to measure how long things take Using timers and stopwatches I Do
Materials for Carpet Time
Your handmade clock Whiteboard and marker Pencil and eraser Teacher has the stopwatch ready
Learning Intention
We are learning to measure and estimate how long things take using seconds and minutes. Success Criteria: I can measure time using seconds and minutes. I can estimate how long an activity will take. I can compare my estimate with the actual measured time. I can explain my thinking using the words seconds, minutes, and estimate.
Time Words
Seconds – short time (like counting to 10) Minutes – longer time (like brushing teeth) Timer – tool that measures time Estimate – making a good guess before measuring
Watch and Think
Watch the video about measuring time Think about what you see What did you notice? Which things took seconds? Which things took minutes? I Do
What Are Seconds and Minutes?
Seconds are for SHORT amounts of time Minutes are for LONGER amounts of time 60 seconds = 1 minute We use timers to measure time I Do
Quick Clock Recap
Which is the hour hand? Which is the minute hand? Which way do the hands move? I Do
Teacher Demonstration: Timing Hand Clapping
Watch the teacher start the timer Count along as teacher claps hands Observe how we stop the timer Record the result together on your white boards We Do
Let's Estimate Together!
How long do you think it takes to walk across our classroom? Should we measure in seconds or minutes? Write your estimate on your mini whiteboard We Do
Check for Understanding
Watch the video about measuring time Think about what you see What did you notice? Which things took seconds? Which things took minutes? I Do
Guided Practice: Walking Across the Room
One student volunteers to walk Class watches and times together Compare our estimate to actual time Discuss: Why did we use seconds?
Pair Work: Time These Activities
Work with your partner Activity 1: Clap hands 20 times Activity 2: Pack your pencil case Activity 3: Walk to the door and back Estimate FIRST, then measure!
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