Includes 105 double-sided cards measuring 6 ¼ x 3 ¼ . On side one, elapsed time is determined by comparing two analogue clocks, the reverse features two times, either in digital notation or words, using 3 types of time intervals. Price: $5.99 |
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Includes 105 double-sided cards measuring 6 ¼ x 3 ¼ . On side one, elapsed time is determined by comparing two analogue clocks, the reverse features two times, either in digital notation or words, using 3 types of time intervals. Price: $5.99 |