From there, we add benchmark times on the left and add the times up on the right. Then, we make our t-chart and write the start time in green. The end time is so important because you have to know when to stop adding times on the t-chart. We write the time period on the top, then underline the start time in green, and the end time in red. I personally love them because they are so easy to color-code (and you will quickly learn that anything that can be purposefully color coded WILL be color coded in my room.) I start by showing the students how to use the t-charts if they know the time period that they are finding the elapsed time between. Click to show or hide the first clock Click to show or hide the second clock Click to show or hide the duration controls Generate a question Set the difficulty of the generated question.I don’t know why, but these t-charts have been lifesavers for some of my students. The clock whiteboard activity has just oneĬlock, but it can be used to display fractions and angles too.ĭigital Clock One - can change format using buttons Digital Clock Two - can change format using buttons Show digital clocks with 12 hour format Show digital clocks with 24 hour format Off Hide the digital clocks Click to spin the hands of clock one to a random time Display the time according to your computer clock The number of hours difference between the two clocks The number of minutes difference between the two clocks Click to toggle linked clocks, when linked changing one will change other Click to set to reset the hour and minute duration to zero.

Start and end whole hour, duration less than 60 minutes and.

All the times are start,end and duration whole hours.

There are five difficulty levels the first two levels are most Multiple question can be created by clicking question Hands can be dragged to solve the question, see the video for moreĬlick the 'solve' button and the clocks and duration willĪutomatically be set according to the question. Or end time, based on which is revealed in the question. Will set the duration to zero and set both clocks to either the start Under the question, the click the first one labeled 'set up'. The activity can generate random question at varying levels ofĭialogue will open with one question. Linked then the duration will update as clock1 ticks. Then the second clock will update according to the duration.

To show the actual time on clock one turn on the real time control, if the clocks are linked On the second hidden clock, which then can be revealed. The students can try to work out what the time is Press the random button, clock 1 will now Tandem with hiding parts of the interface, so for example set the

Second clock will change according to the duration. The difference or duration between the two clocks is set to zero and Now if you change one clock the other will Now click the link toggle button, when on You can alsoĬontrols and manually change the values and the second clock will You drag, the minutes and hours durations change too. When the activity starts both clocks display 9am. Represents a start time, while the right clock represents an end time. Two large face clocks can show independent times the left clock Click 24 button to change to theĢ4 hour format. Click the 12 button to display in normal 12 hour format You can change the format of the digital clocks.

The two digital clocks match the analogue clocks below. Problem questions at varying levels of difficulty. Using two clocks it is easier to explain time differencesīetween a start time to an end time. The two clock activity is a follow up to the clockĪctivity.

Two Clocks - Interactive activity to compare times Introduction

Teaching time clock calculator