Watch It!™ Elapsed Time Clock
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For your Common Core curriculum.
The simplest, clearest way to teach elapsed time! This geared non-electric set features 2 oversized analog wristwatches with correlating digital clocks underneath. Move the minute hand on the 1st watch to your desired start time and the 2nd to your finish time - the digital clocks underneath automatically adjust! Slide open the cover on the answer window to see the elapsed time or keep it closed to quiz students. No batteries required! Teacher guide included. Grade 2 and up.
CCSS Product Alignment
Math Grade 1
1.MD.3 Tell and write time in hours and half-hours using analog and digital clocks.
Math Grade 2
2.MD.7 Tell and write time from analog and digital clocks to the nearest five minutes, using a.m. and p.m.
Math Grade 3
3.MD.1 Tell and write time to the nearest minute and measure time intervals in minutes. Solve word problems involving addition and subtraction of time intervals in minutes, e.g., by representing the problem on a number line diagram.