Measuring the stretch of lolly snakes
- Use a ruler to measure in cm and mm
- Compare measurements
- Discuss our thinking
Today in the 4/5 class we have been exploring measurement using snakes. Students had to draw the actual size of a snake and measure it using cm and mm. Then we had to stretch the snake as far as we could and record both measurements again. Students worked out that every 1 cm was 10 mm.
Using the second snake we recorded the length of the stretch after leaving it for 3 seconds. Students worked out that in the three seconds the snake started to shrink back to size, so the stretch for this measurement was much smaller compared to our first stretch.
- “We learned if you stretch it too far the snake will snap.” Caitlin
- “Today I learned how long a lolly snake is in cm and mm.” Zara
- “That you can measure in both mm and cm.” Edison
- “You can stretch a snake and measure in cm and mm.” Jorja & Jemima
- “You can add cm up to be mm and 4 cm would be 40 mm.” Acie
- “If it’s 7cm it would be 70mm.” Monique
- “If you leave a snake after stretching it for 3 seconds- it shrunk far more than I expected.” Phoenix